I have a couple rifles setup for the AEM5 suppressor (still waiting on it). I just ordered another brake and collar from PRI and noticed that they use a crush washer instead of the precision washers. Question is, will this affect the alignment of the suppressor mounting by using a crush washer? I know I've read in the past never to use a crush washer for muzzle attachments that mount up with a suppressor, but I think with the rear collar, it should be fine for alignment. Anyone have any experience with this? Thanks for the help. (link below for reference).