1/2 NL beatable? (foxwoods)

[Peacedout]

Ok so basically this kind of a similar post to my one earlier on 2/4 limit. Where i tried to find out if 2/4 limit was beatable with the crazy rake + tips. I found it wasnt beatable and i should play 4/8 which i am fine with.

But my next question is comes from my buddy, He says he has been beating 1/2 NL for awhile now, While I dont entirely doubt him i find it highly unlikely. The time charge there is 10 bucks an hour, You are looking at like 30 hands an hour (max). So with a winrate of 7PTBB/100 you are still losing 2 bucks every 3 hours to time charge. So from people here with a decent sample size is it like 2/4 limit and entirely unbeatable?

Or do i underestimate the donkness of people at Foxwoods