Ok, I owned a 1998 TLR and I loved it. My only problem with it was, it was a bit to much bike. Besides that, its definitely an awesome machine...why? one word TORQUE!! A whopping 74.5ft pounds of it stock. Mine had 77.3 after my mods. Let's say you're gonna ride a tight twisty road with a few good long straights thrown in as well....put the TLR in 4th gear and have a blast. You won't have to do all that damn shifting up and down whne approaching and exiting curves because of it't torque. It's not only that the TL has alot of torque because there are several bikes now days with high torque numbers, but the TLR uses its smoothly all throughout the powerband....it's awesome.
So, if it was so awesome then why did I sell it? Well, I realized that I really didn't need all that horsepower on the streets but I wanted a bike that was...#1. a Twin, #2 give me the same handling and #3. has good torque. So I got a Ducati 748 and then decided to go ahead and sell the TL.
One more thing, the TL puts alot of power to the ground especially in the curves and I started to notice that when I would go for a knee drag in a tight decreasing radius and then lay into the throttle that the rear tire would start to scoot out on me a little....like a pre-highside but it never turned into that.
Personally, I'm not thrilled about this whole "Super Lightweight Bikes" with "Super High Horsepower" thing. It just seems a little to dangerous for the street to me (just my opinion). The new GSXR750 is a good bike but it would be a great bike in my opinion if they would make it weigh 400lbs. dry instead of like 365 or whatever. When I rode the new 750 I got the exact same result as I did out of my TLR..the rear wheel wanted to scoot out and in my opinion thats because it has to much hp and not enough weight. It also chews up tires quick.
Of course I'm bias now because I did the "big bike/big hp" thing for a while but now I'm a believer in the smaller bikes...ie. the 600's which some are still a little too light in my opinion. So to make a long story longer...I think in comparing the TL series bikes to the GSXR series bikes that the GSXR600 would be the way to go. Thats the way I would've went but I'm just too big a fan of TWINS.
Just my 2 cents.