This problem is exaggerated on my new version I was trying to make it more tension-able. Much less an issue on the current version.
Provided you don’t tighten the hell out of them you will be fine. There are some that literally crush the plastic, that is not needed.
I am fighting 1/4″ of deflection over 24″ most people won’t notice this on the new one. The ones that do won’t leave it alone. If you do notice it you can shim the Z axis tension bearing to compensate.