Just wanted to share my recent experience w/ riding all day. I've had my 04 RSMV for about a month now and done a few 150-200 mi days. Based on that I was execting the outcome of an all day to be good.
Well.... I just took some folks to Daytona and back. We covered appx 1500 mi's, the last day being an all day of about 550mi.
I've been working my way up to a full touring bike and just moved to the RSV from a Roadstar. The R* would've beat me up pretty good on this trip. The Venture was a DREAM. I had no comfort or performance issues whatsoever. Rode 11hr's on Sunday with a few short gas breaks and when I got home I felt like I could do an another 11hrs with no trouble. The Venture came with Russell All-Day seats that were custom made for the PO. Luckily he and I are of similar build. The seat felt strange when I first got on it but now I love it. Guess that's why the call them "all day".