Move up?

[Zifadel]

I like paying poker, but I don't have a large BR. I deposited 50$ on FTP a couple months ago and through casual playing I have brought it up to a little over 250. I have made 95% of my winnings at 10NL three tables at a time, but find the rake (10%) is just ridiculous. Should I consider moving up to 25 NL where the rake is only 5%? I feel pretty comfortable at those games and have done well when I have played.

The only thing that concerns me is BR management. 10 BI's for 25 NL doesn't seem like nearly enough, especially considering I three table.

Any thoughts, suggestions? I am not eligible for rakeback on FTP.