I only have Helibars and Corbin seat on my '07 and I can ride 20+ hours pain free. The longest ride I've ever done was 1,205 miles in 21 hours and still smiling at the end of the ride. I'm 5'10", 185 lbs. with 32" inseam and have the stock foot pegs and I'm still comfy with them.
Last Memorial Day weekend, I did my 4th Iron Butt ride and did 1,148 miles in 17 hours. I was by myself so no long breaks for me that's why it didn't take that long.LOL
It's been 8 months since the last Iron Butt ride and I thought it would be rough since I haven't done it in a long time but it was still pain free.
There's more Iron Butt rides to come. I guarantee you.