I was at my local hobby shop picking up electric contact cleaner and one of the guys working there had a brand new dynamite 15 turn from a boat kit he got and has a brushless he is putting in. So $20 and I’ve got a 550 15 turn to put in it. I’m going to do a water break in and then put it in. I like that the sleeve with the sticker on it slides off. Better cooling. I had to peel the sticker off of the motor in my Redcat and put the heat sink back on with thermal paste so I didn’t cook it. I’ll look at modifying one of those heat sinks to fit on the Amp MT with this 550 in it. I’ll have to see if I can cut it to fit and still leave the internal fan hole open. It might just work.