How bad is the shake? It should be mild not crazy.
It's kinda one of the characteristics of V8 engines at idle speed. They smooth out when your cruising. It's just the physics and the powa.
After a while you will crave that shake.
The Acura has you spoiled it's quiet by engine.
edit add: OH you know what else I was thinking just now. That 1 thru 4 shifting lock. That could screw up a clutch break in. I don't see how anyone can break in a clutch and tranny with that thing. It's like your driving with a broken tranny in that mode.