Yeah, I tend to watch the Browning Semi's on the EE, and if grelmar can buy them at that price, he can quit his day job and live off the profits of reselling them for what they actually sell for.
Both the ones I did got a very slight radius added to the top of the chamber, as they were both shaving a huge chunk off the bullet when feeding, and quite often, that chunk didn't separate, causing a feed jam.
That work was the totality of the fettling that was done.
For a quarter or less of the retail price of the originals, anyone who expects perfection is deluded. They are not as finely finished, the fit of some of the part is merely OK, but they will work. You get Chu Wood stocks instead of Walnut or Beech. Whatever.
I'll casually suggest that folks that want something that runs smoothly and without issues out of the box, would be better advised, to buy the originals. If you don't mind giving it a once over, and knocking off sharp edge here or there, you can end up with a pretty decent field gun or truck gun, that you won't shed any tears for if you get a scratch on it.
Not saying every one that is out there needs the work, just that for the price, it may.
I think they represent pretty good value for the money.