Maximum Experienced variance?

[xxSTWxx]

thats like 10 or 12 hours 8 tabling in one day...that may well be a losing proposition even without variance...unless you routinely play that amount of hands and win at a decent PT/BB rate, in which case, why are you asking the question.

FWIW I've had a couple of 10k breakeven stretches (at 100NL) and I've dropped 8 buyins in like 1k hands before, but I've never dropped 8 buyins over 10k hands.

Maybe cut back on the tables hours and see what that does?