Nope not yet...I think that will be a little fast though.
I love fast things...but the Lehner 5300 is just too much on 3S and that will put the truck on it's lid at pretty much any speed if i peg it, so i'm going for something a bit more usable and also to gain some runtime.
MM 4600 is looking tempting now...especially given that i will be able to use 4S should the need arise ;)