Already traded my 90- 843 in on an 01- 773 vertical lift Turbo. What a difference I cant believe how smooth it is and how fast it is. Drove by the local dealer and seen it sitting their begging me to come demo it. Stopping was my mistake. After running the 843 for the last month it seems like a dinosaur compared to this unit . A couple of questions for you 773 owners. I have a new set of 12- 16.5 tires and wheels, will they bog this machine down? What makes a machine a G series and the G stands for?