Do wooden arms warp

In response to Lewm - I was not having a pop at wooden arms, and my post was in essence inquisitorial as to what people have experienced. In other words I am surprised as to the heated nature of your response. I see the point that cartridges wear out (although they can be re-tipped) likewise other components as well, but I am umming and ahhing about a super arm like a Schroeder LT or a Durand, and it is in pursuance of this that I made the post.

A hornets nest if ever there was one. Thanks Vetterone. As person who has worked with wood I personally think that it has amazing qualities - natural fibrous structure? check sufficient structural inconsistency to prevent single dominant resonance frequency? check, Light? check? strong? check.
That said I know from experience with woodwork it can be a complete pain in the backside - the worst being getting sufficiently rested planks, and the correct grain.
Just because it is used in musical instruments so as to resonate, it can also be used to get rid of resonance and channel it away - I know a custom guitar builder and he's forgotten far more than I will ever know on this. Bear in mind that we can get hold of carbon fibre guitars, and if we want we can and do make metal instruments - so all things are capable of resonating so as to make sound.
I guess the best answer appears to be - in theory they can warp, but in the lifetime of those having owned such arms no such ocurance has ever happened and even if it does, it will be minimal given the wood selection and 'proprietary' treatment (I personally think the last one is total nonsense BTW) because wood warps over such a long time, and those treatments are highly unlikely to have been tested over 50 plus years