Okay, finally got my seat modified and had a decent ride on it.
I had Sargent Cycle (sargentcycle.com) do a seat upgrade. I had them upgrade the foam, change the rise (to get my parts off the tank), widen and increase the seat height.
Upon inspection, the work is excellent, seat looks good.
What a difference in the ride, the seat is so much more comfortable. The sliding into the tank is gone and I have much more support on my legs and lower back.
Well worth the cost (somewhere under $300, don't remember exactly, price sheet is on their website). I believe they did as good as you can do on the stock seat pan.
The ultimate solution is going to be a custom built seat with a wider seat pan (i'm 6'6", 265).
I still would like a little more distance between the pegs and seat, so I'm going to look at lowering the pegs.
All in all, I am extremely happy with the Sargent upgrade.
2008 BMW R1200RT
2008 Kawasaki Versys
2002 BMW R1150RT
2002 Suzuki VStrom DL1000 (Gone)
2002 Harley FXDWG Wide Glide (Gone)
2002 Harley 883 Sportster (Gone)