Static local variables quick question

[Wallack]

I want to create a dynamic polymorph item.

It will change your stats depending on the local variables stored in the polymorph object.

I had bad experiences in the past as sometimes if I read and write often on an object it can corrupt the local variables until those are stored again.

As I'm going to store the variables only once ... what are the chances of the item being corrupted ?

Kind regards.