I will probably get one too! Then we can all share data with different motor/gearing combinations, and make a nice thread with all of that data! This is what is being done with the numerous Lipo batts over at the RC community of
http://www.rcgroups.com , which I frequently visit.
SH Z-Car, Custom Crawler, 8s Savage,
12s XTM XLB 1/7 buggy,
4wd 4-link rear/IFS Pro4 truck,
Custom Hyper 10 Short Course,
Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz