Stats Check: Down in the 25/50 and 50/100 level

[Marnixvdb]

Hello

After 500 SNGs (still small sample, i Know) I am down in the 25/50 and 50/100 blind leves on the party 109 SNGs.

I have three questions:

1) Is 500 SNGs enough to draw any conclusions on my play in the seperate blind levels?

2) on first sight, is there something wrong with my stats in those levels?

3) Is it important to make a profit on every level? Or, although this seems unlikely to me, is it possible that an average loss in chips on one level, translates into higher profits in the next levels? (because double the chips wouldbe worth more than double than what losing them all costs..?)

thanks,

Marnix