I'm going to somewhat go against the grain here, but I just picked up my cuse this past Wednesday. Rode it 100 miles up the turnpike to get it home. I've been waiting for 4 mos for it to get here, so I had lots of time to study on what I'd like to do to it. My 01 Ultra always felt like it needed a 6 speed. It was bone stock, but it felt like it was being run hard at even 70mph. My first inclination was to put a 6 into the new one. After looking at the power curves for the 103, I wasn't so sure. The 103 has it's peaks a good 500 rpm higher than the 88. Several of my freinds have 95's with the 6 and they state it lowers the rpm about 300 over 5th gear. If the 103 has it's peaks higher than the 88, why lower your engine speed? I'll certainly agree, that running 2 cylinders at 3500 rpm for any length of time ain't no fun, but how often do you travel EXTENDED travels at pushing 90 mph?? After I rode my CUSE home at 70-75 (after 50 miles you're okay to 3500 rpm in any gear per the manual), I'm kind of glad I didn't put a 6 in it. It seems like it just getting started at 70 mph. Certainly 100 miles doesn't make me any kind of expert, but I think I'd look at the riding you're going to do before spending the money for the 6. The stock seat seems okay, but I don't like the backrest- it's too short. I had a Road Zeppelin seat on my 01. Road it to the Arctic Circle. 28 days of pure bliss. It was a very comfortable seat. Had the adjustable backrest to it. I would consider it over anything on the market. It's tough to beat air ride, that can be tailored to your likes and your passengers likes. The first thing to get changed on my CUSE will be the shift levers and windshield. All will get longer. I will go 2" longer on shifters- had them on the 01, works great! Gives you the whole floorboard to use, and still easy to get to once you get used to them. Haven't decided on the screen yet, I'd like to have a tinted one, like the original, but about 2-3" taller. Sorry for the long post.