There is a lot to be said about that old cliche "The best you've riden is the best you know"!
Although you can't tell much difference in your suspension when you add a click or two here and there, you will definately feel the difference if you crawl aboard a bike with fine tuned suspension.
I had the opportunity to climb aboard a genuine Super Bike (GSXR1000) and after three or four laps I was in love. Suspension, brakes,,,,,,,,,,,,,,,,,,,,, everything was leaps and bounds ahead of my stock suzuki suspension. Made me realize to some degree how the really fast guys go that fast. This bike held the track record at the time. Of course I wasn't going to set any records with it but I could go faster everywhere.
You too, will improve your riding skills at a faster pase if you have your suspension dialed in for YOU! There is no "One size fits all" when it comes to suspension set up. When you get your suspension set up at the track, you simply acquire a baseline. A place to start, so to speak. From there you should play with one adjustment at a time, starting with rebound. Add a few clicks, then go the other way a few clicks and see how you like it. Don't be afraid to play with your settings, you can't hurt anything. Just remember where your baseline settings are so you can go back to that setting in case you get lost.
Dave Moss explains much of this in his dvd's. You can't go wrong with this learning tool. Although these dvd's won't make you into a suspension guru like Dave, it will give you a much better understanding of how your suspension works and hopefully take away those fears of twiddling a few knobs yourself!