Peter said: "In summary, I would say that the Hoffs is more expensive, more attractive, has a more comfortable body and is considerably hotter..."
Than Moms you mean?
Wiley asked:
"What distinguishes the 350SH from any of the 320/325/350 "Looks-Like John's-Guitar" complex, to merit designation and the extra $$$? You rarely if ever see any "name" players using them or any of their kith for serious lead work...Is the 350 something more than an expensive (albeit attractive in a vintage sort of way) rhythm guitar?"
I ran across this interview with Mike Campbell regarding his custom RIC. Mike aint too shabby eh?

Ive seen him play this guitar live on MANY occasions and its got some serious mojo!
CB: Can you tell me about your Black and Gold Custom Rickenbacker? (Love Is A Long Road, Listen To Her Heart, You Don't Know How It Feels, American Girl)
MC: They made it for me.
CB: Did you design it?
MC: Yeah, well, it's based on a
John Lennon-style body. And we made it
semi-hollow inside and we put a
hotter pickup in the treble position and we made the neck a little bit wider. It's a one-of-a-kind.
CB: How long have you had it?
MC: Oh - eight or ten years, I guess by now.
(From Robert Dye of Guitar World)Mike Campbell: The Rickenbacker Company was making Tom a guitar around 1989 and they asked me if I wanted one. So I had them make me a unique one. It's a semi-hollow body with a wider body than most Ricks. The treble pickup is hotter than normal.
Most Rickenbackers are good for rhythm but not solos. But with mine, I can actually play solos and it sounds good. It has a lot of bite. I use it for most of our live set.