When should you step up in stud?

In holdem or omaha you can make the decision to step up in limits when you are consistently earning xBB/100 hands. What would be the best method for making a similar determination in stud where there are no blinds?

What I have been doing is setting a buy in target. Earn 5 buy ins at the next level then play the next level. If I lose the equivilent (SP?) of 3 buy ins, I step back down and start over. (The 2 remaining buyins dont count toward the 5 I have set as a target.)

I define buy in as 100 full bets for stud.

Not sure if what I am doing is the best way to go about this, any thoughts would be appreciated.

a good rule of thumb in cash games is to play tables that have a max buy in that's no greater than 10% of your bankroll. so if you have $1000 in your account, tables with a $100 max buy in are where you should be. similarly in tournament style, you shouldn't buy in to a tourney that's over $100.

Just a word of caution..

Just because you can move up a limit coz you are BR-ed.. it may not be the best thing especially if you're really making it on your current limit or you think you still have much to learn.

Or as the Rocky song, Eye of the Tiger goes.. don't go trading your passion , for glory. XD

Thanks for the replys

BR isn't an issue for me in this question. I am learning stud and looking for a good method of assessing when I am ready to take a shot at the next level. Just curious if the way I am doing it now is effective or if there is a better way to go about it.