Sometimes I love this thing, sometimes I want to sell it. I had found decent settings that I saved on the amp's presets. I'm not using Tone Studio to pick the amp's brain. I like turning solid knobs. They all worked great with humbuckers and P90. Happy camper I was. My understanding (turned out that's what I wanted) was that you crank the master to get the amp cooking and adjust volume to taste. That's how I've used it up to a few days ago. Whenever I switched to panel controls, volume was similar. Everything fine, unitl ... Yeah ... until I read on the Katana Facebook page, that it's supposed to be the other way around. Crank volume, adjust master to taste. So I readjusted those accordingly on my presets. I hated it. I am now trying to come back to where I started before reading that stupid post and I can't find a decent tone anymore. I think I'll play my SCXD for now and let the Katana sit on the back burner for a while. Maybe my ears don't want to cooperate or something. I hate that ! No I'm not going to use Tone Studio ... and I'm leaving that stupid Facebook group.