[maltaille]

I don't know that your results are evidence of anything, given the sample size (though I think it's a great thing to track on an ongoing basis), but I think players at higher limits, even NL100, are more willing to fight cbets than the passive fit-or-fold fish at lower limits. Whether it's people calling you with better hands, more floating, or a greater number of bluffs/semi-bluffs, you're going to have to fight harder for pots at higher limits.