Hi guys I need some feedback, I have a opportunity to purchase a I brand new mcd rr4 roller at my local hobbyshop for $825, I'm some what conflicted. Just wondering do you think that's a good price? I do have my eye on the new rr5 roller for around $1,190 from LSR. I have the for either one. Do you think I should with the rr5 or the rr4. Please advise!!!!!!!!!!!