Had my f109 on my club's indoor carpet track for thee first time this past Sunday (10/7/12). All I have to say is bad fast!!
We run 3 5 minute heats & 7 minutes mains.
My results:
Heat #1: 2nd -- soft springs up front, 4000mah 2S LiPo, silver can motor, tire sauce on both rears & inside edges of each front
Heat #2: 2nd -- same settings except used a 5500mah 2S LiPo & tire sauce on rears only
Heat #3: 1st -- came from 2 laps down to win race by 2 laps over 2nd place, NO tire sauce, 4000mah LiPo
A-Main: 3rd place, No tire sauce, same settings, 5500mah LiPo
I used my brand new f103 spoked rims with Tamiya 3630 Fronts & Tamiya 3645 Rears.
72T spur & 20T pinion, and SXT 3.0 tire compound. Not bad results considering Saturday was the first time running it on carpet.