So as the heading says I'm getting back into the sport of nitro RC. I have been out of it for probably 5 years or so. I origanally got out of it because I was a broke school boy and now I have a decent job and I want an rc again. I had a 2.5 Maxx before with the old style radio (no opti drive). My question therefore are what are the advantages to the opti-drive, if any? What has traxxas done differently in the past few years? What is the going price for a T-maxx? And any other information you have is greatly apprecitated! Thanks.