That's exactly what I did, upon some recommendations and common sense: on my W126, put the Comforts on front and the HDs on rear.
True: when driving slow or short trips not allowing the shock to heat up, you feel the road to a greater degree. But on driving hard and long, its great. In fact, with the C's on front and HD's on rear, I do feel at times that my SEL behemouth handles like (dare I say) a BMW 328. I ascribe this to the HD's on the rear. This size of vehicle demands them.
Glad to know I'm not alone in my thinking.