I have the same concerns, but Peter said I worry to much or something to that effect. I wondered/asked about changing out the hardware every couple of years or something?
Lol, figures!
I think I'm just going to add them to my list of "things to torque periodically". As long as the bolt holes aren't going egg shaped it shouldn't be an issue, and they shouldn't do that as long as everything is properly torqued right?
I bought myself a set of alignment turn plates, so I can do complete alignments now without having to bother taking it into a shop. Figure I can check that periodically now, and if anything starts to go oblong it should show up in the alignment. With the SPC arms being double adjustable it will make it a ton easier to accomplish any necessary adjustments too.