Having just reread this whole thread it strikes me that the people who believe that freddy didn't teach buddy anything are saying this out of unbacked opinion and almost hope...no way, buddy was all buddy. but the people who are disagreeing are presenting factual evidence. jordanz knew him...bernhard said:
It's normal for living legends to make some legends with other legends. If teaching or only correcting, fact is, that Buddy himself stated, that Freddie helped him a lot....and he didn't mean carrying drums...
i think gruber's strength, the reason the top guys go to him, is in his ability to watch and see where there can be improvement. he's an analytical teacher not an instructional teacher. think about it. when you get as good as say, weckl, its got to be hard to find the places, particular in fine technique, that can be improved. freddy knows what to watch for.