Wow, enlightenment. It's never less than surprising to realise that you couldn't re-enter a negative count when they don't get that many rounds out anyway. I suppose the real question would be why you'd want to? You know a double deck game, 75% penetration and 5 players and you're on the 4th round with a -ve count, sitting out to the end of the deck wouldn't seem that bad an idea to a neophyte like me. You might miss a +ve count or 2, but it would seem to me you'd miss far more -ve ones. It seems to me that not being able to re-enter until a fresh shuffle might actually benifit you, but again what do i know? :eyepatch:
Keep dolling out that advice about splitting 10's - it's a great plan. I know loads of pros that recommend doing it just like you say.
Of course wonging in and out aggressively is going to draw heat - although sitting out a few -ve hands here and there is going to draw far less attention than splitting 10.
RJT.