This will be obvious to most, but I thought I would bring it up. If you are using or have downloaded a patch with the preamp simulation on in the cab block, remember changing the signal level before the cab block will have an affect on the preamp simulation. It is level dependent.
So you if you set up the preamp in the cab block and then went and then leveled all you presets with the amp block, this would send a different signal level to the preamp simulation in the cab block and the amount of saturation it had would change. So after a volume change before the cab block, you will probably want to adjust the amount of drive in the preamp sim.
So you if you set up the preamp in the cab block and then went and then leveled all you presets with the amp block, this would send a different signal level to the preamp simulation in the cab block and the amount of saturation it had would change. So after a volume change before the cab block, you will probably want to adjust the amount of drive in the preamp sim.