They were very close to scraping when at 12 0'clock they actually did scrape a couple times. No fear of them hitting now, plus they look alot better and they are not much louder but do sound cooler!
Maybe its just me but from my experience the RZ drums grooves seem to be a little smoother or cleaned out a little better.....for lack of a better term. RZcolobanshee is right there actually isnt a bearing the dowel or peg thingy is a seperate piece and just rolls freely in the shift fork. They do make a noticable difference.
That sucks man! But obiously it was somebody you know or atleast someone that knows you. Ive jumped out of bed on many occasions thinking I heard someone trying to steal my shee , I hate that feeling when your laying there wondering what that sound was. Best of luck bro. You live in Canada? Where abouts?
If you get an R just make sure it is already built. Cause if you buy a fixxer upper you will have more than the price of a new 450 into it before you are done. Trust me.