I too play in a cover band. In the FM3/FC6 setup, I used 6 Presets, 6 Scenes, and then had 6 effects I could toggle off and on, with one effect being the tap tempo. Yes, I use it very much like a pedalboard.
I like the idea of more switches to access more presets and scenes, however the perform setup seems to limit you to four scenes per preset? I'm a bit stumped on how I want to set this up? I could get by with 8 presets and 8 scenes. Would I then set the bank size to four and have the right two switches on Layout 7 bank up four new presets and show scenes 5-8, and keep Layout 8 for my effects? Does that make sense? I appreciate any help. I'm sure we all go through this.