There is skill clipping and there is hitbox clipping. They both exist since all races have the same hitbox regardless of size. This is where my confusion over what you were saying because of the context of the rest of the post.
It is 100% impossible to get a triple weave with 0 clip without 3rd party tools. The only people who can triple weave without clipping are people using 3rd party tools. the reason is below.
Every Ogcd is given a minimum amount of time b4 the next one can be triggered essentially giving the netcode time to work and allowing players to plan what they are gunna do based on that information. it is part of the equation to try and create balance amongst dps output so that low ping players aren't putting out more damage, and high ping players aren't being banned from partyfinder.. If you have 0 ping(not feasibly possible), or similitude 0 ping through a 3rd party tool there is enough time to fit 3 in. This is because the intention is for double weaving so this extra time allows for above average ping players to still double weave. It requires a rather high amount of ping to not be able to double weave without clipping. this is made worse with bad ping that takes longer to register the entry late thus preventing your from getting a second weave. They recently changed the way the timer on pots, to allow for double weaving with pots, because previously they had wanted to restrict the pots to taking up a whole window. Something that would be in the way of doing a modern rotation on some jobs. This is not bad net code or unexpected. it is an intentional design to try and create a fair playing field between low and higher ping individuals. I used to play on country internet, and while my ping was awful I could still, just barely double weave without clipping 95% of the time. Dodging mechanics on the other hand was very challenging. This has no relationship to the snapshots of mechanics in the game and weave clipping, except that both them are effected by the players ping. Which exists in every mmo.
This is not to say there isn't an issue with snapshotting in this game, cause there is. it just has nothing to do with skill clipping.