I tried to do simple analysis comparing 2 methods (pitching the lowest, pitching 2nd lowest from xxxx). Here is simple example:
Dummy --->>>>> QJ4
We-> AK532
We lead A and partner gives count (let's say it's obvious that he should give count or that it's our agreement).
His possible holdings are:
xx : 67, 68, 69, 6T, 78, 79, 7T, 89, 8T, 9T (10combos)
xxxx: 6789, 678T, 679T, 689T, 789T (5 combos)
1)Partner always pitches the lowest:
We will for sure now about xx seeing an 8 or a 9. Only 3 combos.
We also have a shot to know for sure if partner plays a 7 and declarer doesn't pitch the 6 but other card (possible 3 combos)
2)Partner always pitches the 2nd lowest:
Here comes the problems beacause it depends what declarer pitches.
We will know for sure seeing a 6 (4combos). We will also know for sure if partner pitches a 7 and declarer lazily plays a 6 (3combos). If partner pitches an 8 it again depends on what declarer plays (this time he needs to play a low card). 9 is again clear.
So overall we will instantly know about 4 possible doubletons and have a shot to know about 7 more if declarer doesn't falsecard correctly (against our method).
From this simple example it seems that pitching 2nd lowest from 4 cards is superior. Thoughts ?
Any other ideas about giving count signals using UDCA ? (I've heard about something like only playing the lowest from xx or xxxxx etc.).
Any comments appreciated

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