Frankly from what my friend the HK armorer, who was also a Master HK Instructor, told me HK didn’t care enough about our 30-40 man part time team and what to them were small orders. The MP5 Master class was one training I always wanted to attend but never got a chance.
I did get and T&E the 36k and c. I wasn’t impressed with them. They mostly got a meh from the other guys who shot them. I never liked the UMP either and I think they liked to push that too.
I don’t remember HK ever trying to sell us anything…