Shotgun chokes

[Bar1]

There is no problem with non-factory chokes if you buy quality and the correctly threaded choke for your gun.

Hence I say "Be Careful" - one can't just "sommer" throw in a choke and expect happy days. As you say, one will need to buy quality and have them correctly threaded for ones gun.
If the chokes are poorly fitted - they can create an obstruction in the barrel and kaboom. Rather err on the side of caution and get some good advice from reputable guys in the field.

[Ricochet]

I use Teague chokes and bought it directly from them. The best chokes I've ever shot with

How did they send them to you for interest sake as I want to get some from them too?
What was the bill for transport over and above the price of the chokes?
How long ago did you purchase them?
Sorry if I am asking too many questions but it is important to know.