Life has been a lot better for me, since I started treating my modeler like a music store. I play the same few amps most of the time, but every once in a while, I go to the store and "buy" a new one to try. I spend quite a bit of time and energy exploring that one amp to see what it can do for me. If it gels with me, I put it into rotation. If not, I "return" it to the store and go back to my known quantities. That approach has saved me from wasting oodles of time on useless tweakage.