Why use a hotplate?
I prefer a Groove Tubes Emulator II. Ckeck it out on their site; U can ad an effector in stereo, have control over the blend between direct and effect, can send the mixed signal directly to the PA, with speaker simulation and send a mix to a personal system.
I use a VH4S fo this purpose, combined with a Diezel cab 2X12; rather costly but ever so efficient and true tone is what you get...
As it comes to quality and feel, this is what You want, believe me.
Flow chart goes: VH4 -> GT emulater II -> Effect (Eventide in my case) -> PA and to VH4S -> Diezel Cab 2 X 12 front loaded. Nirvana both on stage and the same goes for the Front of The house mixer.
Midi to VH4 via Comumbus, linked to Eventide.
Of couse some added trics remain obscure, but I 'll be glad to share them, if asked.
Greetz,
Leo
PS: Hope if not convinced, might have confused You.