I shot two different Lone Peak Fuzions Sat along side a Defiance Deviant and I can honestly say the Lone Peak was smoother. The defiance was nice no doubt about it, but the nod went to lone peak. the first 5 rounds i cycled i had to check because It felt like it didn't pick up the round, it had.... the lone peak is supper smooth and solid.
On a side note, I use to be worried about the whole 90 degree through and being slow, until I started paying attention to the fact that a lot of the fastest guys are shooting 90 degree bolt throw actions. If you have a 60 degree throw but the slightly heavier bolt lift throws you off target and you have to find it again what time did the 60 degree save you? just a thought.