Hello,
I ended up taking my Spider IV 212 back to the shop where I purchased it from (went through 2 x of them)
I had an issue with the Green Insane channel distortion "bleeding". Had the noise gate & noise reduction activated and still had troubles. Even upgraded the firmware.
I would palm mute say an E5 and every 2nd or 3rd chord strike would have a sound thrown back at me .
Could not get a tight staccato palm mute.
The clean tone on the Spider IV is heaven but the distortion not so much.
I am using my old Spider II 212 as the distortion tone on it is far superior.