I find the normal rake to be small enough that with the additional 1% 'tax' I can still profit over rake.
I have been on mad swings with AA vs KK and KK vs AA for example. I'd rather just lose 1% than having to psychologically dealing with such situations ^^
Most will tell you not to use cash-out, but personally: for 1% I think it's very beneficial to my mental state at the table.
If you CAN handle the $1000 swings to gain an additional $10 profit then cashout is not for you
If you're putting enough volume it really doesn't make sense to cash out ever. It's just paying the cardroom extra for a little peace of mind. Something you don't have to worry about if you're properly rolled for the stakes that you're playing, and don't focus on outcome.
The only reason to ever consider the cash out option is if you're crushing your stake already and want to move up quickly. Then again if you're truly crushing a stake, by the time you've amassed a decent sample size you're probably rolled for the next stake anyway.