Easy-- more information, more guns, more feedback, more experience.
I'm not a fan of CVA's misleading marketing approaches, and their problematic barrel proofs, etc. Nevertheless, when I review a gun, I try my damn best to be objective. Those reading my reviews on the Chuck Hawks site would be hard-pressed to miss the articles on "Unsafe Muzzleloaders?" that add some context. It is all on the same page.
The first test gun sent to me for testing was a super-heavy triggered model. I was assured that this was the "exception" by CVA, not the rule. The second gun had a better trigger. That 3-1/2" group was the "BEST"-- not an average. I worked like a dog to get it there, shooting that gun every day for a week. For the money, for a 50 yard avg. shot at game, the Optima will kill a deer.
BUT The danger of one incident reporting has crept in. One gun, one testing sequence. My examples were tested before the Optimas were available for sale to the general public. Later, comparing notes with other reviewers, I discovered that my heavy-triggered monster was the rule, not the exception.
The gentleman who was sent this same gun after I finished testing it, who is on this very board, got nothing better than 5" groups-- and he is a VERY competent, experienced muzzleloader. A replacement barrel was sent to him by CVA-- it did NOT FIT the action, and popped open with the slightest bump. Not good.
The gun went back to CVA AGAIN, and was replaced AGAIN-- apparently, a new gun, updated action, with only the original sights remaining. That gun showed promise with light test-firing.
I really don't care to inflict another Optima on myself, though it appears there have been running production changes. A best group of 3-1/2" should tell people something-- if they compare it to the Encore test, that shot Powerbelts @ 1" out of the box, the Omega that was a 1-1/4" gun, the Austin & Hallecks that are 1" guns, and the Knight Elite-- that was, and is a 1/2" MOA (or better) gun.
So, I should update that review-- whether a first-year gun, car, whatever-- a test sample of one gun is very limiting, and though I put several hundred rounds through a gun in testing, it just is not the same as multiple year, long-term test-- with several identical test guns.