Most of us euphonium players prefer compensating euphoniums that are close to being able to be played in tune across the range, we make adhustments using alternate fingerings or by lipping the pitch. If we want to move slides, we put triggers on the main tuning slide for adjusting. Tuba players tend to prefer more valves (5 or even 6) and slides they can pull to play in tune. Thus begins an argument by tuba players who double on euph that traditional compensating euphoniums are stuffy and should be "front valve" with slides on top that can be pulled. Euphonium players (OTOH) argue for British style tubas in BBb or Eb and say they are good enough.
In the context of our current political climate it is akin to arguing about the southern wall. Neither side really wants to listen to the other!
Adams E3 0.60 Sterling bell - Prototype top sprung valves
Concord Band
Winchendon Winds
Townsend Military Band