TWO SUITS OVERCALL
  MICHAELS CUEBID (with modification)
  LEAPING MICHAELS (with extension)
 
 After opponent opening we must find agreements to be competitive during the auction, like:
 
 1- bidding takeout double if we have Hxx in other 3 suits with 4432 - 4441 - 5431;
   Opponent         we
(1♣/1♦/1♥/1♠) double <= takeout X for partner bid
 
 2- bidding overcall to show our suit - with  undefined  strength - maybe 8-16 hcp after agreement with partner - in principle we show 5+ cards with 2 top honors and probable we can't double because there is an unbid suit that we do not have 3 cards or principally because the overcall is an indication to lead and so we show to partner where to lead:
    Opponent           we
 (1♣/1♦/1♥/1♠)  bidding other suit up the line
  
 3- bidding a takeout double strong where after partner's bid we bid again:
 a) our own suit in same level (or up the line) showing a middle strength like 16-17 hcp and 5/6 cards):
Opponent We Opponent Partner
  1♦            X    pass         2♣ 
  pass        2♠ <= ♠AK9xx ♥AQ98 ♦xx ♣Kx 
 b) bidding our own suit in jump to show 6+ cards and 18-19 hcp asking partner 3 cards support or honor second and good 6 hcp to bid game:
Opponent We Opponent Partner
  1♦            X    pass         2♣ 
  pass        3♠ <= ♠AKJ9xx ♥AQ8 ♦x ♣KJx 
 c) if we cuebid that means we have a fit with partner and a strong hand 18-19 hcp showing game interest.
Opponent We Opponent Partner
  1♠            X    pass         2♥ 
  pass        2♠ <= ♠Ax ♥AQ86 ♦Kxx ♣AQ10x 

 
 4- bidding a convention to show 2 suits: bidding Michaels Cuebid to show weak 2 suits up to 10 hcp or bidding Unusual NT also to show weak 2 suits up to 10 hcp or bidding Leaping Michaels to show 2 strong suits with 5-5+ cards and up to 4 losers.
 
Michaels Cuebid convention is a competitive way to disturb opponents auction and to show 2 suits with a weak hand 7-10 hcp in distribution 5-5 or 6-5 cards. This may allow, in favorable vulnerability, to find a good defense against possible opponent’s part-score or game. So having less hcp than opponents, but good distributional points, we can be competitive with this useful convention principally when we are not Vul against Vul.

Note1: Michaels Cuebid do not apply when Vul against nVul and when you have 2 suits 5-5 but have 12-15 hcp. So, if you have good hand 5-5 with 12-15 hcp you should bid one suit and if possible, then bid the other suit.
 
 standard Michaels Cuebid
 opener overcaller
   1♥       2♥    <= 5♠+ and (5♦/5♣)+ cards
                             range 7-10 hc
´

 opener overcaller
   1♠       2♠    <= 5♥+ and (5♦/5♣)+ cards
                            range 7-10 hcp

 Michaels with modification
 opener overcaller
   1♣       2♣    <= 5♦+ and (5♥/5♠)+ cards
                            range 7-10 hcp
 opener overcaller
   1♦       2♦    <= 5♣+ and (5♥/5♠)+ cards
                            range 7-10 hcp

Rule#1: After a minor opening a cuebid shows 5+ cards in the other minor and also 5+ cards in a major with 7-10 hcp.
 
Note2: the Michaels modification has the advantage that gives possibility to include Spades with minors to show 5-5+ weak overcall (5♠-5♦+ or 5♠-5♣+) that is unable in the standard Michaels Cuebid or Unusual NT.
 
Note3: the standard Michaels Cuebid use a minor cuebid (1♣ overcall 2♣ or 1♦ overcall 2♦) to show both majors with the advantage that, if there is a misfit, the hand can be play at level 2 and not at level 3 as Michaels modification implies.
 
Note4: the Michaels modification change the Unusual NT convention to show both major or both minors, not like the standard Unusual NT that always shows the unbid lower-ranking suits (♦-♣ /♥-♣/♥-♦).
 So the Unusual NT have the follow modifications:
 Opener Overcaller
   1♥      2NT <= both minors (5♦/5♣)+ cards
   1♠      2NT <= both minors (5♦/5♣)+ cards
   1♦      2NT <= both majors (5♠/5♥)+ cards
   1♣      2NT <= both majors (5♠/5♥)+ cards

Rule#2: After a major opening a overcall in 2NT shows 2 minors suits with 7-10 hcp and after a minor opening a overcall in 2NT shows 2 majors with 7-10 hcp. 

Note5: Michaels Cuebid and Unusual NT are distributional hands with 7-10 hcp not allowed to be used Vul against nVul, but recommended to be used nVul against Vul if the other major have A or K as top honor.
 
Note5: Some partnership that don’t play Leaping Michaels, sometimes use Michaels Cuebid and Unusual NT with very strong 2 suits when overcaller want to know in what suit partner has 3+ cards to try a game in hands like:
a) ♠x ♥x ♦AK109xx ♣AKQ10x but now
    after opponent 1♠ bid 4♠
    after opponent 1♥ bid 4♥
b) ♠AKQ10x ♥AKJ98x ♦x ♣x but now
    after opponent 1♦ bid 4♦
    after opponent 1♣ bid 4♣
c) ♠x ♥AKQJx ♦AK109xx ♣x but now
    after opponent 1♠ or 1♣ bid 4♦
d) ♠AKQ10x ♥- ♦Kx ♣KQJ10xx but now
    after opponent 1♥ or 1♦ bid 4♣
Thus, using Leaping Michaels we cover these types of strong and distributional hand. Therefore, Michaels Cuebid and Unusual NT should not be bid anymore with strong 2 suits or even with a middle range (12-15 hcp). In these cases of 12-15 hcp an overcall is necessary and if possible then bid again the second suit. PARTNER NEED RELIABLE INFORMATION.
 
If we bid a Michaels Cuebid or Unusual NT with middle range 12-15 hcp or with only 5 losers how advancer (partner of overcaller) could take a final decision for sign-off the bidding or to bid game?
 
9.8- LEAPING MICHAELS - concept by Mr. Mark Feldman
This is a special convention that allow us easily show a strong two suits with 4 or less losers bidding after an opponent opening in weak 2 and by extension also allow us to show 2 strong suits after normal opening in any suit at level 1 by opponents.
Leaping Michaels do that using a jump overcall to level 4 in 4♣ or 4♦ to show these rare hands 6-5 or 5-5 with 4 or less losers;
 Examples:
 East South (a)
  2♥   4♣ <= means a 5♠ and 5♣+
               ♠AKQ9x ♥8 ♦x ♣KQJ10xx
---------------------------
 East South (b)
  2♠   4♣ <= means a 5♥ and 5♣+
                    ♠x ♥KQJ106 ♦x ♣AKQ943
---------------------------
 East South (c)   
   2♥   4♦ <= means a 5♠ and 5♦+
                ♠AQJ9xx ♥- ♦AKQxxx ♣xx
----------------------------   
  East South (d)
   2♠    4♦ <= means a 5♥ and 5♦+
                    ♠9 ♥AKQ107 ♦AKJ10x ♣xx