Dave i have a question regarding the hyde soft mount type A for the ys 140dz i drilled out the 6/32 rear disk holes to 8/32 thinking it would not harm anything i again read instructions and it says not to drill those real disk holes out In other words i screwed up a 110 dollar mount i have been using mount for about 2 hours of run time on the ys 140dz i have noticed that the mount does have some movement to it its not really acting like its moving on the firewall its in the mount itself is that normal or should their be no movement at all and be rock tight thanks Bruce