yeah and ive looked into the lightsaber styles as well and while its true that the soresu user will outlast the djem so user, the djem so user is more oriented towards dueling. Djem so is a branch of shien which in itself is just soresu geared more towards dueling. Overall it comes down to individual duelist, but the soresu user is at a disadvantage in a lightsaber duel with anyone who uses a different style. If you watch many of djem so's movements are tight and defensive like soresu, but it focuses on a offensive aspect. I do agree with you though makashi users dislike djem so duelist quite a lot it makes riposte very hard to perform.