I have two CVA Kodiaks which I like a lot. The first 2 years, maybe 3 years, that I had them they both shot within 2 inch groups at 100 yards. I have shot a lot of rounds through them, but now the groups are not so tight. I can still hit a small paper plate at 100 yards. I may try changing the breech plugs this summer. I've taken 3 does at 75 yards and a 10 pt at 20 yards.
I have 2 encores and 2 contenders, but none are muzzleloaders. They all shoot nicely. TC has pretty good customer service, too. I had a 30 year old 44 Mag pistol barrel that I stripped the scope mount holes. They sent me a brand new barrel within 6 weeks. Also, one of my contender frames was not working properly and they fixed it for free.
Good luck deciding.