Re: timney trigger !?
I had an X-mark pro, reasons I didn't like it, for the guy that asked. Advertised as set at 3lbs., it was significantly over five, the max amount of weight for my old trigger pull tester. Advertised as externally adjustable, adjustment screw had no noticeable effect. Internal screws led to function issues or a crummy feel and not significantly lower pull weight. I did like the shape of the shoe. And from the factory it was a very clean crisp, ridiculously hard pull. Might have warrantied it but by the time you pay shipping from AK you've about bought the Timney, Remington didn't get it right the first time they might not the second either.
Timney, easy install, set right where advertised, easily adjustable, crisp clean pull across weight range. Did have to clearance the factory SPS stock for it, did not have to do anything to put it in a B&C.