Need help on selecting stall torque converter

The advice you are about to be told is...

1. over the counter = junk/not very good/ hit it miss on quality and working properly.

2. Call converter companies ptc, dynamic, (forget the others)

3. Converters make or break the whole setup

I cant find much info on over the counter converters (I've looked at hughes 2500 stall). As most threads turn to call converter company, answer their questions and buy what they advise.

Good luck!

Edit- I am in the same boat. My transmission is probably next on the list of up grading my car. I would love a custom converter but my wallet is not 1k converter capable. I think it was Dynamic that you can get a converter for like 500 shipped to you that is supposed to be really good. I called the new hampshire place that will probably be dropped in here and they were like 750 shipped when I called asking about a converter.