Quite . . . but, re-splitting both hands would mean another two max bet going out and if you use Hi-Lo you could end up copping one of the uncounted 7,8,9s in the deck - as could the dealer who might draw a combo of these cards to hit 20 or 21, so there's the increased variance issue to think about - Aslan has mentioned intuition, but this is more about risk management me thinks.
Is it then one of those cases where you set the maths aside and, in this case, settle for your potential two max bets wins (not re-splitting), or play to the maths (as I'm sure the maths purests, who contend you should never set the maths aside, would advise) and run the risk of potentially losing four max bets instead of just two if you hit crap cards second time round and the house hits 20 or 21?
As a casual player, if it ever happens (I've never had occasion to split tens yet) I think I'll stand on my two twenties, and leave the rest of the additional tens in the shoe for the dealer to cop.