Hey, sorry this is more a question about valve games than the tool itself but i dont know where i could get help.
Picture this : when you extract fps views of tf2's characters for example the heavy's minigun, you have the hands plus the minigun and then you can freely animate it as one model. Now if you ever played randomizer mod in tf2 you know that it randomize the weapons and the class so you can get something like heavy with bow, so visually what you see is heavy's hand with the sandwich idle animation and a torn up bow that looks like it has been crushed to replace the sandwich. Thats an interresting sight there os something similar in csgo where you can take any weapon from the ground but your hands will always be the same.. There was a time where it wasnt like that like in the goldsource engine where changing hands on one skin meant changing hands only for this particular fps view. So my take on this is that they made a system where fps hands are only one static entity invisible floating bones for the weapons wich would explain the heavy's bow being all crushed because its holding points are forced into the sandwich one.

I like my theory but then there is one flaw, why would they have multiples fps views files like in the old days like v_bow.mdl with in it both hands and weapon ?

Any idea on the matter this question has been burning me for ages