I have read through all the info I could find here and on SMJ, and I am left with a few questions about mods and upgrades. I want to replace the mirrors, I am thinking about a bar mount style inside the grips, but may look into a hand guard mount style. Any suggestion about what brands will clamp onto the bars? This leads to me next question, I would like a set of hand guards, but I don't really want the aluminum bark buster type, I would prefer a plastic type. I have read that some have issues with clearance of the levers. I don't want to trim the levers or cut off the balls! Does anyone have suggestions fro what will fit without trimming? I have been reading about tuners, JD Tuner or PCV, I already have the power up and Leo slip on. Is the power increase worth the money for a tuner? If I get one I am leaning towards the JD. Is it worth the money? Next question is about airbox mods. My airbox is stock with the stock Uni filter. Does removing the screen in the elbow and opening up the cover really help performance much on the FI bikes? One more for now, I would like some axle sliders, I am considering going the cheap route and making my own using skate board wheels and threaded rod, but would be open to suggestions that don't cost a fortune. Are there any kits that you would recommend? Sorry for all the questions, thanks for your help! Dave