The slotted/drilled rotors have the following benefits. The slotted and drilled design promotes heat dispersion and more importantly disperse gas build up improving friction. The ability of heat dispersion also promotes better integrity (no warping) as heat is the primary factor in warping. The drilled rotors do have a slight benefit of lighter weight. Unsprung weight saving and less inertial mass is very desirable in road and of course, track application. Better fuel economy, and performance (which will take away that fuel economy!...lol) Also something to consider is getting the rotors cryo'd. The cryogenically treat the rotor, which as I understand super cools the metal matrix and improves durability. This is an application that is popular in superbike racing, and streetbike mods... I had goodridge custom fab me steel braided lines which in my opinion was the best mod I did. Very purposeful. The stock brakes on the vx are good, and less the fact of replacement from wear, I wouldn't suggest to replace. The braided lines really improve feel and modulation. Powerslot is a good and spec'd option. Ebc is a very good pad. I run them on my race bike (ebc hh). Galfer is a very good brand but I do not know if they make applications suitable for our vx's..good luck