One more thought that should probably weigh in all our decisions is how well are we beating our current stake? If you were only beating $25NL in the 1bb-4bb (.5ptbb-2ptbb) per 100 hands range over 50k to 100k hands, then, yes, that is probably a legitimate concern if you can beat your next stake, but I feel like even if you have a low sample in the 10k to 50k range, if the win-rate is pretty high around 10bb-30bb (5ptbb-15ptbb) range, that SHOULD be a reasonable indication that you will at least be a winner @ $50NL or whatever the next stake may be. I've yet to hear a clear consensus that there is ANY one stake where there's a dramatic drop off in win rate or dramatic rise of skill level.

As for that hand, I think folding is right. What hands does a 15/10 12-15 tabling player raise with in early position that we feel good about calling with KQo? Without a confident read, raising back just seems spewy to me. We do have position and he could be raising light because he thinks you're stealing, but for 6x more bb's, you better have a good read with a range we think we can play profitably, hope he misses, hope you hit and you're not dominated - that's a lot of skating on thin ice. Just give him your 3bb's and pick a better spot ... oh nevermind, you did