Moving up to 10/20 or adding another 5/10 table?

[chessmaster]

I know up moving too fast can be very expensive...
Though what ive seen so far in the Party 10/20 games doesnt
make me feel i could lose there in the long run. And especially the very agressive style of the players there seems to fit quite nice for my rather passive approach, because my big hands are paid off extremeley well so far.
I played some more 10/20 and am currently at +75 BB after about 730 hands. I know this is an unrealistic winrate to maintain, but do you think it can hurt much to keep test-playing at 10/20 with a stoploss of say +25 BB and only then move down again to 5/10? I could do then a next shoot at 10/20 after proving to be successful at the lower limit after a month or so.

@Gazza: Nice to hear from a chessplayer who also plays poker. Maybe we can have a game of chess sometime...