freeroll ownage (question)

[rhymenocerus]

I am a donkament player that has been living of poker for a year or so. While I havent mangaged to save anything, I always am able to pay rent/bills/expenses with poker. However I often find myself completely busto due to having to withdraw my whole roll. As apposed to redepositing I play freerolls to re build. I am almost always able to make about 1 final table per night, only playing UB and AP freerolls, about 7 or 8 of them usually. I was wondering if I am running well above expectation by final tabling 5000 man tournys or if exeptionally poor play makes this feasable. Also, in theory would playing perfect poker in large tournys with 99.9% awful donks enable you to win 99.9% of said tournys? sorry for rambling im a sucky writer