Hey guys, I'm due for my first maintenance of my 2000 kx 250. I've decided to get a wiseco kit, either pro-lite or the racing style kit. From what I've gathered the options are pro-light or racer's choice. Which of those has greater longevity and probably has less wear on the engine? I'm guessing that the racer's choice kit gives more power at the expense of having to exchange them more quickly. What I'm looking for is the most reliable piston. Advice? Also, I have no idea what the bore of my engine is. I know that it can be measured directly. Any advice on telling between a sleeve and a plating? I have calipers to measure it out. I don't want to end up buying the wrong size piston.