I always use multiple keyboards, if possible. For one hour jobs, it's just a piano or arranger. For my little Friday-Saturday night early gig, I use a controller over an old MS-60 with an old Yamaha tone generator.
For my country club job I use a B-3 with an SH-201 on top and a suitcase Rhodes at my right hand. At another house job, I use a SD-5 on the bottom, an SH-201 on top, a Hammond XB-2 on my right hand and an NP-30 on top of that. I always use a piano on my right hand when I use my nord C-1. Most of the time, it's my 61 note Electro.
I've always done it this way. Sometimes, I rotate my GW-7 in the mix, but never use any of the arranger functions.
Prevents a lot of boredom this way.
R.