I'd like to hear about this as well. Please update when you get a chance to run it.
I picked up a LWRC kit on closeout at a local shop a few years ago for $75 and really like it. But at the current pricing, I would definitely look at the KAK set up. The LWRC is $100 just for the tube, spring & buffer without an option to go heavier on the buffer. I've thought about using the LWRC shorter buffer tube with a brace for a compact pistol build. The KAK is cheaper, so I may do that on my next build. I like CMMG's Rip Brace, but at $200, I can figure out another option.