I got a line 6 flextone amp and i'm using it with the modfactor and timefactor in the stereo fx loop and with midi
this amp has 36 presets, they start on program change 1 and go up, i have the eventides changing presets along with the amp
i'm using the line 6 foot controller, fbv shortbaord, the amp saves presets with fx loop on/off pre preset, and the footswitch lets you stomp it in and out on the fly
other feature i'm using is the amp sends tap tempo and tuner on one switch, the tap button works on the timefactor but not modfactor (modfactor doubles bpm) so i'm using the reverb switch and it's cc message for tap
i already have the line 6 footswitch, but if you didn't have that you could use a factor pedal to change presets on the amp using the midi out