I noticed the other day that the action on my squier cv has increased by around 1mm. I haven't adjusted the saddles, and they appear to be in the same place so I don't think they've moved by themselves. And I've checked the relief, that still seems to be ok. I've set it back how I want it again but of course now the saddles are lower than before, and there's not much adjustment room left. Any ideas what caused this?