I've always felt that just learning the "right" fingering was a lot less trouble, and more reliable, than learning to play via transposition. It's like learning a new language (it IS learning a new language). If you have to speak it through some intermediate "translation" step, you're sunk. Don't learn some goofy trick that will just get in your way. I absolutely can't play trombone by trying to associate slide positions with valve combinations. I tried that, and it was miserable. Same for Eb vs. BBb tuba or Bb euphonium. At least that's my experience.
Gary Merrill
Wessex EEb Bass tuba (PT-63)
Mack Brass Compensating Euph (DE N106, Euph J, J9 euph)
Amati Oval Euph (DE N106, Euph J, J6 euph)
1924 Buescher 3-valve Eb tuba (with std US receiver), Kellyberg
Schiller American Heritage 7B clone bass trombone (DE LB K/K9/112 Lexan, Brass Ark MV50R)
1947 Olds "Standard" trombone (Olds #3)
Bookmarks