If you are switching a lot, I would go with either same tip opening or same family. I do both using a Selmer S-80 and Super Session both in a D facing. For years I had a Meyer 6M and it was about the same tip. The SS just has more guts and the S-80 is a bit more refined. Still "your" sound will be similar on any mouthpiece but the ease of projection may vary a lot.