BEST TIME to Split 10's.......
Agree that this "move" is an excellent Ploppy Deterrent! And probably not that costly in EV, when you are otherwise getting away with a Wide Spread. Certainly, -EV easily made-up (presuming this move is being made at ultra-Neg. TC's) by Heads-up action and LOTS more rounds per Hr./session. Except for DD on Stiffs, I have seen no other move clear the table as quick as a "10-splitter".
OTHERWISE, the BEST TIME to Split 10's is:
(1) At the appropriate ++TC's.
(2) AND, Especially SWEET when TC is high enough, and/or "draws" LOW ENOUGH, to justify RS-10's (i.e., Re-split 10's).
(3) AND, OTHERWISE, probably should be reserved for your LAST 1-2 Hands of a Positive Shoe/Deck, WHEN YOU WERE LEAVING ANYHOW!.....will just draw too much attention....unless, of course, as above, you do it frequently (in Neg. Cts.).
Personally, as a "PAMILS", i.e., "Play-All, Mega-Indicie, Low-Spreader" type of player, I cannot afford to make this move in Neg. Cts. However, in that I am often making PRIMAE FACIAE STUPID Plays anyways (Hit 12 v. 6, 14 v. 2, not DD'ing 11 v. 10....in of course, Neg. Cts.), I often can get away with a few 10-Splits here-and-there.
Phantom007.