Anything you can do to improve the stock seat will be appreciated by the comfort monitor, your butt. The stock seat is OK for a few miles, after that, I get "hot spots" at the pressure points my butt has with the seat. You can't wish those away. Ignoring that burning, biting pain is like ignoring putting your fingers in a meat grinder. Getting off the bike is the only solution. A firmer seat that spreads the load off of my hip joints and onto the backs of my thighs has worked well for me. I've had some custom seats that looked good, but were in function little more than a pleather covered oak 2 x 6. The end result was the same.....a seat I couldn't do 50 miles on without developing a deep hatred for motorcycle riding. There are a number of improvements you can do to the stock seat....sheep skin covers, beads, air hawk, ATV seat covers, sweet cheeks, a bucket seat out of a Ford Pinto....I have a friend that took a large garden kneeling pad of very dense foam he found at a store, adhered some tie down straps to the corners, tied it down to his seat and it does an amazing job. Non-intrusive and comfortable.
This has been been one of the few bikes that I have not suffered from wind buffeting on. No windshield, low, high, I don't experience turbulence from passing wind. I have spent enough to buy a medium village on windshields in my life. If the wind is beating me while on this bike, the wind is also tossing the bike around like a row boat on rough waters. Windshield can't change that.
As Tom pointed out, for under 150 mile trips, the stock gearing does a pretty good job. You still have plenty of capability on or off hard surface roads, RPM's aren't fatal to the bike trying to keep up with traffic. Truthfully, a 150 mile trip with a stock equipped bike would not create any concerns for me. I could tell you before I left I would be stopping at least twice to get off and stretch the legs. Let the circulation in my lower region catch up with my upper region. And to just combat fatigue. A constant fight with wind for an hour is enough.
A few minute break that will give my butt a time out, allow me to relax, divert my attention off the road, is not only making the trip enjoyable, it is a safety measure. These sound like planned trips, not a fuel propelled exodus the day of the Apocalypse. Leave 20 minutes earlier, so you can ride 5 MPH slower, and not burn up your bike engine, avoid a dramatic incident where your butts says "far enough", and you maintain enough road awareness you can react to situations rather than succumb to them. And none of that has anything to do with tweaking the bike. A few long distance road trips will reveal to you what you need, rather than throw a fist full of cash at the bike and hope all it makes something better. Your body will tell you what will make things better for you. Let's just hope your body doesn't say "Buick".
ďmany a trip continues long after movement in time and space have ceasedĒ- Steinbeck, [I]"Travels with Charlie"
[FONT="Century Gothic"][I]Sometimes your only available transportation is a leap of faith[/I] [/FONT]