So, I can't tell who is writing to whom!
I run the Dunlop DOT Medium compound on the front unless I get other compounds. If so, then I run soft at smooth tracks and med+ (or Q3) at rough track and in cooler weather.
I run a very short wheelbase and a big pizza platter rear sprocket. For me it works. The chain is as short as it can get and the 190 just fits with plenty of clearance and without rubbing. The Woodcraft warmers were always a tight squeeze. The Moto-D fit fine.
As John mentioned, the #s on teh sidewall mean nothing. You have to get the true measurements for the tires you plan to use, understand how they change shape on width different rims, and know what you're looking for. I did a lot of testing with the Q3 sizes, for instance and there were significant differences between them and depending on the PSI run on each.
I'm in Kevin's camp. If you're after lap times, then get all of the bling and top notch stuff. If you're after rider improvement, like I am, I run a range of things so that I can learn how to work with each of them. I still have stock clipons, rearsets, and nearly everything else. i'm working on me out there, not equipment to get better lap times.
Slicks? Meh. I like how the bike works with the tires I already have.