That is a very good servo, you can't go wrong with it. Do you really need one that good though? It is very expensive! The BMS-630MG is almost as good, but costs 1/3 as much as that Airtronics:
http://www.rc-monster.com/proddetail...S-630MG&cat=39
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