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Dec 18, 2012
, 06:29 PM
Spektrum Dev Team
Joined Sep 2001
The ones on my planes are all squared off, the chamfer is much less than the rounded one you show.
As for "better" you can do lots of googling and come up with different results. Gotta love the Internet!
Mine all report reasonable numbers (ie, in still air they match ground speed +/- a few MPH at full throttle).