What is your ultimate riding goal?
To be comfortable for X miles:
X =
X = 200-400 miles per day. Stock seat with pad. Gel, sheepskin, beads, Airhawk.
X = 300-500 miles per day. Butt Butler rework.
X = 400-600 miles per day. Butt Butler with pad. Gel, sheepskin, beads, Airhawk.
X = 600+ miles per day. Custom seat. Russell Day Long, Rick Meyer Saddles, Laam (Laam is new and I haven't tried their seat yet. Will be purchasing one for my KLR shortly to test.)
I have been through all of these options. As pads go, the Airhawk is by far the best. Had mine for about 6 years and it had one leak. IIRC, it comes with a patch kit. Patched it up and it has worked flawlessly ever since. My wife uses it when we ride together since I am too cheap to upgrade the passenger seat for only a couple of relatively short rides per year.
Every butt is different so the mileage ranges above may vary slightly, but the order is pretty fixed. If your goal is to do Iron Butt runs in comfort, skip spending on the pads and go directly to the Russell or Meyer saddle (if you are over 250 lbs - Russell is a far better choice). If you want to do the occasional 500 mile day, see if you can borrow a pad of your choosing and try it out.
FYI, Russell is about $500; Meyer is about $400, Laam; should be about $300. All are built on your current seat pan. Airhawk is about $150 although you can find them used. Gel pads are from $50 to $100.
I ride long distances (IB runs) and have been VERY pleased with my Russell.
As an aside, there are often different factors at play with seat comfort. Airflow under your butt can make a big difference when it is hot out. The best seat with a sweaty butt is still going to be uncomfortable for long distances. A dry butt will help a decent seat feel wonderful. Where this is leading - sometimes it takes more than one solution to be comfortable in all riding environments. In the heat, a sheepskin and/or beads will really make a huge difference even with a custom seat. As will the proper undergarments. Some of these items are cheap and don't take up much room. Sheepskin from IKEA for about $25. Cut to size. Beaded seat from Walmart for about $10. Look at the construction and you will see how to easily customize the car seat beads to fit the Venture seat.
Wicking undergarments without seams also help for long distance runs. My favorite is LDComfort.com. Not cheap, but excellent quality and wonderful functionality. It is a company founded by a long distance motorcycle rider (no relationship with company other than a happy customer).
RR