In my case it does not even fix the problem and I only weigh 192 LBS. I'm looking at an after market but don't know where to start. Any help?
MKW:
Man, you're killing me here... I haven't seen 192# since I was a senior in high school. Just my right thigh weighs more than that.........

I can't imagine what it would be like to run up and down stairs with an 80# load taken off my legs.
Jerry:
Yes, a seat pan mold change would take care of this and also reinforce the pan at the same time against flexing.
Without my fat butt on the seat and with my 1" extension on the rear seat bracket, my seat just touches off on the tank console. When I sit down it gaps about half an inch.
If I take off the longer bracket and put it back original, the seat without any weight has almost an inch gap. I can't see the spacers making this gap up without any weight on the seat.
I'll take a new seat with the "fix". For what it's worth, my wife and I both find this SERG seat to be as comfortable as the Mustang 16"/12" seat I have on the '76 FLH and a bit more comfortable than the Sundowner I bought for the '08 SERK. I think for very long trips the Sundowner would be better for the wife, but for the majority of our riding we like the SERG original seat. Also we ride with the Chopped TourPak installed and it has the Buffalo insert leather print to match the seat. I like to keep things matching.
If you look at the new '10 Road Glide Custom seat, it's nice and firm and you cannot lift up the nose of the seat with your hands. I do understand though that the '10 SESG has the same issues as the '09 SERG has, or at least to some extent.
I've said this before, this is not rocket science and it's not that they "just" got into business and are making their first seat. We're in the 107th year of HD, you would think they could get something as basic as a seat to work and fit correctly.

Later dudes and dudettes...