I wouldn't buy one again. Mine was a 7mm mag pro-hunter - serious problem child.
As it arrived to me - it had bar none the roughest bore I had ever seen, took months for barrel to be warrantied, next barrel that came the chamber throat was non-existent....rifling all the way to the case. Third try - much quicker trn around and that barrel was not bad!
Had to put in (well - did it cuz I could) a bellm hammer spring/trigger spring to get it to where I liked the trigger pull, and zero DOES FRICKEN SO CHANGE when the barrel is removed/re-installed! Do NOT trust it until you've shot it after taking it apart.
I'd caution against oversized hinge pin - and advise for a screw together one - there's simply NO WAY you can take a drill, auger out the holes made by TC in a factory, and make them BIGGER and equally as straight as TC does. The screw together pins don't drift left to right, and they're MUCH more consistent, that said, without a torque wrench, you can't take apart and re-assemble a TC EXACTLY the same as when it was last apart, right down to the screws on the forend....again....don't trust a freshly re-assembled TC to be accurate until you've shot it at a target.
It's a great idea (switch barrel), I wish they could make it shoot as accurately as a bolt gun OUT OF THE BOX, but there's simply far too many variables to control. When tough times hit for me awhile back that was the first gun to move out of my safe....but by then I had dicked away nearly a year with it, tweaking loads and getting parts in hopes of making it accurate, which I DID get it "acceptable" by the time I sold it - seriously - after owning it and hearing the stories of many other owners - I MUST say it sems the front stuffer barrels and 308 barrels for them are the ones that seem to consistently perform WELL, other than that "fussy b*tch that shot well enough I wasn't mad enough to get rid of in haste FOR AWHILE - but I eventually gave up on and sold" seems to be a really REALLY common phrase when dealing with the Encore family.
I've also heard (again - my experience would indicate YES) 7mm bores on TC's are the problem child - notoriously being replaced under warranty or just junk.