The top end v bar is with out a doubt the AGF.
But It comes at a price ( £42.00 )
Almost all the recurve archers at my club use them and they DO NOT MOVE
if you can afford one then im sure you will not be disapointed, as for others ?
Dont have a clue as all I see are AGF's.
Remember a cheap ajustable v bar coming loose on someones bow at a comp last year but dont know what make it was.