Well if you envisage swapping your bars quite often than I see your point!
Adaptors work fine, most people who prefer a-head do so because it is simpler, lighter and stiffer than quill. most people who prefer quill do so because it is more elegant and vertically adjustable than an a-head.
If you dont mind missing out on these advantages of the two systems than you have nothing to fear. One other thing is that you might like to consider is how a shorter stem will affect the handling of your bike. Shorter stems give quicker twitchier handling, longer stems give slower more stable handling.
Well if you envisage swapping your bars quite often than I see your point!
Adaptors work fine, most people who prefer a-head do so because it is simpler, lighter and stiffer than quill. most people who prefer quill do so because it is more elegant and vertically adjustable than an a-head.
If you dont mind missing out on these advantages of the two systems than you have nothing to fear. One other thing is that you might like to consider is how a shorter stem will affect the handling of your bike. Shorter stems give quicker twitchier handling, longer stems give slower more stable handling.