My br is ready to move to higher stakes, but am I?

[pucks32]

Not sure if this is the right place for this post, but I play micro, so it seems like it...

When I deposited $600 onto FT a couple months ago, I started playing 25NL, along with $10 SNG's and MTT tourneys.

Now, my BR is approaching $2,000, and while I've started playing $20 SNGs, I'm still playing the same ring game stakes. My reasoning is this: I've made nearly all of my money playing SNG's and MTT. My PTBB/100 is only 2.51, and I've played just 6,500 hands at 25NL.

I'm not sure if I should wait until I get 10,000 hands in and a little better winrate at 25NL, or if I should just move up to 50NL now, since I'm rolled for it. My issue with this is that I have the bankroll only because of my tourney play, not my cash game play, so I don't know if I'm ready to "graduate" to 50NL, so to speak.

Thoughts?