Anyone using the Corbin Dual Tour Saddle? We're looking at purchasing an aftermarket seat for 2 up long distance riding on our Strat and like the style of the Corbin seat. However, there is quite a bit of "love it/hate it" controversy about whether the firm seat is wonderful or a pain in the ass. Since I've never used a Corbin seat before, I'd appreciate any feedback from people who have. Thanks!