GEARING INFO

I going to race the 415 w/ a 19T Spec motor. But not sure what the appropriate gearing needed for the track I will soon race on. The track at my LHS pretty much resembles the track layout of the Tamiya, CA (RROC'04). The spur gear I'm using right know is a 102T-64P and pinion size is 31T-64P which according to the manual gives the final gear ratio of 7.20.

Would the gearing be suitable for the track I'll be racing w/ medium bite as well? Set-up of the 415 is similar to Rod's (RtypeC) set-up used at the RROC'04 except w/a center 1-way layshaft (still working on that part but might as well wait for the one Tamiya's coming out with) and stock front bridge suspension mount D.

Any info re gearing will be appreciated. Thanks!