Need Input on Grenaded Converter

I hope that someone didn't try and pawn that off as a performance converter. There sure isn't a lot of furnace brazing on the impeller vanes, and zero tig welding on top of those vanes. Same with the turbine, nothing added to make things stronger.
I don't even remember how I acquired that one. The replacement came from a small but well respected converter shop.... and was 2.5 tenths quicker, and 2 mph faster, in a nine second car.
Maybe I shouldn't have used the first one in front of a transbrake glide, behind a 550hp small block? LOL!