Maybe nobody feels like trying out all your alternative fingerings :wink: I don't think it would be useful at all. IMO there is no right or wrong in fingering. Pick whatever works the best for you. Someone else's mileage may vary, as they say.
============================ Perhaps by now you don't need any reply to this... but I happened to be seeing it now... and will respond to the first part of the question. Traditional fingering of a Dominant 7th arpeggio in the right hand starting on A is what you wrote. I'd try to avoid taking the same fingering for the D Maj7th because of the stretch between fingers 3 & 4. I'd use (I do use) 1, 2, 3, 5... Same goes for the G Maj. 7th. The Bmin7 could be what you wrote, though the stretch is not pleasant either. So you could also use 1, 2, 4, 5... Altogether it's a great tool to cross/shift between fingers 1 & 5. This idea will be one of many in my fingering book, if I ever get to actually write it... You could also use for the Bmin7 the fingering of D6 arpeggio. Start with 2 on B (which will be 4 in the next octaves) and continue with 1, 2, 3, 4... ------------------------------------------------------- One last slot available for the Oct 25-31 piano camp for adults in Utica, NY. All piano playing levels accepted. http://ramisrhapsody.tripod.com/