Need Converter freshened

I have a PTC 8" 5500 stall that I haven't had freshened in 7 years. No issues, but will have trans. out this winter, so why not?
Should I call PTC or take it somewhere else? I've heard they were having some kind of issues.

Haven’t heard of any issues they are having other than Kenny Ford sold it.
He I believe it still there helping out. Lot of the guys who work there have been there forever.
They do my stuff too. Never had issues with them