Ha...
I see where you are coming from ...
from experience and a lot of reading on here, it seems that it depends on any or all of the following:
place you're in,
where it's placed there-in,
wall voltage,
cab and speakers,
guitar wood,
guitar pickup,
guitar setup,
string condition,
cable quality,
volume played at,
all before you consider its settings
Many say stuff like "for $??K I expected more" and I think I was like that initialy, but the more I have perservered with it the more I see that Mesa is like the hottest of chicks; high mainatainence (to setup), highly expensive, highly tempramental, but when you get it right, **** is it sweet...
Most things in life that are higher spec and more expensive need more attention, experience and skill to get optimum results... so why should it be different with amps ... if you want plug and play with great results every time I think thats not Mesa's style. maybe a few examples like lonestar or stiletto can be like that but by the same token, they could never sound like a recto at the top of its game.
keep it for a while and mess around with everything... if one time it sounds awesome, cool, but dont expect it to be there still next time and place round, expect to have to jorney there again, and hopefully, that gets quicker each time.