Yeah, seen these vids.
Kinda shocked at how he could make it sound somewhat fizzy though, because these the Mark IV is known for having a baby butt smooth sound
That would surprise me, too, because typically once an endorsee changes gear, the previous endorser removes anything related to that player immediately. I saw this video on Mesa Boogie's homepage last week.
Here is his gear list from his site. Excluding guitars
Amps and Effects
3x Mesa Boogie Mark V amps
1x Voodoo Labs GCX Switcher (for amp input and channel select)
1x Korg DTR 2000 Rack Tuner
1x Dunlop DSR-2SR Rack Wah system with 2 Controllers
1x Mesa Boogie High Gain Amp Switcher
1x TC Electronics C400XL Compressor/ Gate
1x Keeley Modded Tube Screamer
1x MXR EVH Flanger
1x MXR EVH Phaser
1x Digital Music Corp. System Mix Line Mixer
1x TC Electronics 1210 Spatial Expander/ Stereo Chorus/ Flanger
3x TC Electronics M3000 Reverb/ Delay
1x Eventide H7600 HArmonizer
1x Custom Patch Bay for Pedalboard connections
1x Furman AR Pro Power Conditioner
Not Seen:
3x Axess Electronics GRX4 Audio Switchers for Pedal and Effects switching
1x Axess Electronics CRX4 Control Function Switcher
1x Furman Aura Pedal for Acoustic
1x Radial DI Box for Acoustic to PA system
His tone sounds good to me. I don't care what other gear he uses because I'm sure he won't give up tube amps for any kind of processor. That's actually a better sounding tone than some of his videos. John is known for mad soloing skills but his rhythms are what I enjoy the most about his music. His rhythm tone sounded pretty good there. I would like him to do a video with the new rectifiers.
No issues here! You see his endorsement for the FX in most of the guitar mag's. along with D. Zappa and the rest of the 50 or so other users they show. Axe FX system is supposed to be the cats meow when you need to get the tone but can't take all the gear with you. Dwezil loves it according to the last article I read in GP, and he still plays both tube and FX. Just curious as to why John does not mention it on his Web Site.