EndeavorShooter
A couple of things, I took my Endeavor apart and honed the mating surfaces and put a Bellm spring in it { of course I used to have a muzzle loading and archery shop and I tear into every gun I buy just because I want to} my trigger is just what I want I don't like them much under 3#for a hunting gun.
The story of a single piece stock etc is more or less true or at least it was up to the point where moder engineering change things now they have auto sniper rifle.
The truth of the matter is the bolt action is very strong and with 60,000 PSI in a modern cartridge rifle it is the most reasonable way to combine strength and accuracy.
Trouble is in a muzzle loader you don't have lugs locking into the barrel so the length the bolt takes up adds nothing but length and weight and no strength.
As for the one piece stock adding accuracy if that's true then how come my Triumph and my Endeavor will both out shoot my Omega which has the same advantages they are talking about. Now as far as the time frame is concerned I burn over a case of Blackhorn and a half case of Pyrodex a year and have been shooting the Triumph for a number of years ever since they came out and I could get one and the Endeavor for a couple of years and the will still shoot as good as they did new.
One other thing I will mention i always put thin steel washers between the forearm and the barrel studs to float the forearm so I do not have to worry about just how it sits on the bench every time I shoot it.
i don't doubt some people believe these things but I do not think they look at reality with open eyes.