I was taught morse by Mr Mason at Topcliffe in the early 70s. The standard required was 25wpm. Mr Mason would tell us he could do 30 wpm. after an hour of morse with him we would be looking forward to finishing the session. His favourite words would be “just another little bit”.
one of the guys on our course who had trouble with morse, claimed he had morse wrist. He even went sick with it! It was hardly worthit
I would be surprised if anyone could do 35wpm. If they could the ground station operator would be unlikely to be able to write that quickly.