I have a Warburton LA in a 6 opening: I find I have to take a lot of mouthpiece in my mouth so I am assuming the facing is long.
The design IMHO is great and one of the most innovative I have tried in years. The chamber is large and there is quite a lot of baffle, so the sound is powerful and a bit bright. The closest comparison in sound for me is a Guardala Crescent, with the LA having the advantage to be available in multiple openings rather than in a unique one.
So far the only issue I am having is with the high and altissimo notes which I find harder with this mouthpiece than with others (i.e. all Morgan and Phil-Tone pieces deliver beautifully there, in my experience), but this limit is more likely mine, not the mouthpiece.
The design IMHO is great and one of the most innovative I have tried in years. The chamber is large and there is quite a lot of baffle, so the sound is powerful and a bit bright. The closest comparison in sound for me is a Guardala Crescent, with the LA having the advantage to be available in multiple openings rather than in a unique one.
So far the only issue I am having is with the high and altissimo notes which I find harder with this mouthpiece than with others (i.e. all Morgan and Phil-Tone pieces deliver beautifully there, in my experience), but this limit is more likely mine, not the mouthpiece.