unix-guy
Master of RTFM
It only takes a few seconds to check...If the cab modeling was disable, I should hear no difference changing the cab, right? This is not the case
Placebo effect is more powerful than you think. I can't tell you the number of times I swore I was hearing a difference which turned out later to be impossible.
You could try a blind A/B test.
Also, what guitar/pickups are you using? I recently bought a Kiesel Delos and it has way more high end than any guitar I've ever played.