I have a regular Solution and a Revolt-X. I bought the regular Solution the year they came out, 2021, and I bought the Revolt-X used about one year later.
I first had the Solution set up by the shop I bought it from. It held terrible for me and that is why I eventually bought the Revolt-X. But then I later stripped the Solution back down and completely set it up again, following the Paige Pearce "how to make your bow aim better" video. I was able to make it hold tons better but would say that it is fairly critical of its setup to get a good pin float. Nock position and peep height made a ton of difference in how it held, as well as d-loop length. It draws a bit longer than what the mods say, I haven't measured how much but I'd guess around 3/16" to a 1/4". I'm actually shooting it a 1/2" shorter than I normally use for draw length setting and then made the d-loop slightly longer than I normally do to get best pin float.
My Solution did have some serving separation at the tight turn on the cam, even with an aftermarket string. It is something I'll mention to the builder the next time I have a string built for it. Most say they have no issue if they use an aftermarket string maker and make sure they mention this issue to the builder beforehand.
The Revolt-X is a great holding bow, it is not hard to get setup with some pretty good pin float. I shoot it in Performance also, not quite as harsh as the Solution for stacking at the back and dumping into the valley but still reminds you of a speed bow draw cycle. I have never tried it in comfort, so can't comment on it. It has higher let off than the Solution and a bigger valley. I really like Lucky Stops on it, they really helped to shrink the valley a bit and increase the holding weight more to my liking (and reduce the 90% let off). With out Lucky Stops it feels like it gets all of the advertised 90% let off and I hated letting it down with the factory let off, it felt like you almost had to push the string forward and then it would finally go and about rip your shoulder out of socket.
It feels almost spot on to me for draw length as far as the draw length module settings.
I've had no serving separation issues at the cams with it, but it came with a Threadz string on it when I bought it. The string has been shot enough that the center serving at the nock point got really worn out and I redid the center serving. String still looks great and I expect to easily get another year out of it.
I regularly shoot out to about 80 yards. I definitely find the Revolt-X to be more forgiving at distance. Best way I can explain it, with the Revolt-X I don't have to be nearly as focused on all aspects of my shot process and follow through as I do with the Solution. If I get distracted a bit with the Solution it definitely shows up on the target. For me, the Solution seems to have a very noticeable line in the sand once I get beyond 40 yards. Under 40 I can shoot some very nice groups with it while in "auto-pilot", but beyond 40 I'd better be very focused on all aspects of my shooting or it will burn me.