I ran a Reedy 10.5t Sonic at the weekend and i can echo what the other guys in this thread have said. Motor is really really smooth, runs really cool and super quick !
Compaired to my X12 i ran the reedy with much more endbell timing (second notch from top!) geared it a couple of teeth higher on the pinion and used about 15% more speedo timing. I also removed any turbo delay timing i had on the speedo and this help it have a linear super smooth feeling.
Never say a temp above 50c either
If any of you guys are interested if you drop me a PM i will happily share the setting i used on a hobbywing Xtreme stock.
Mark