I was in Cancun all last week for a company conference. I mostly played $30 razz heads up sit and gos and $5 nolimit holdem sit and gos.
I'm definitely losing money with the holdem sit and gos and winning money with the razz ones. I have been improving in the holdem sit and gos and have started to hit 3rd or 4th place fairly consistently.
So at this point I'm investing my profits from my razz game into holdem. Once I can show a sustained profit at the $5 no limit holdem level I'll move up to the $10 level.