All the 03 Tonas had CF inserts on them (thus, making them the best years ever :-D )
As for gearing q's...I initially dropped the front from the 18 tooth to the 17 tooth. I liked it, but wanted more low-end grunt. I went ahead and put a 44 tooth on the rear and WHOA! What a difference!
My rationalization was simple. I don't go balls out mach 10 on the highway, so losing some top end wasn'ta big deal for me. Also, most of my riding is devoted to tearing up twisty bits, so the low end grunt seemed like a natural fit...and it was!
My opinion...go for the sprocket change. the 17/44 combo (for me anyway) seemed to really liven up the bike, putting the useable torque and HP in a better spot.
Hope this all helps, and congrats again on a really great looking 03!
-Ski
P.S. Good choice on color, btw. Red adds at least another 20 ponies to the ride!!!
