While I have heard good things about the Saddlemen and Corbin, how about letting
Mean City Cycles rebuild your current seat? Tell them your height, weight and inseam, and they can recommend which modification would be best for you. Besides, they are a pretty easy ride from where you are and they don't mind if you bring the bike in for your appointment.
I'll be sending my RG seat to them in a couple of weeks, and will post my impressions back on this forum when I get it.
Having said all of that, I used to have a Mustang two-up seat on my Sportster and loved it. Put a similar one on my RG and hated it. Go figure.