We bought 2 new Redmax EB7000's last fall. By July we had gone through 3 shoulder straps. They seemed to pull apart at the threads. When we approached our dealer with the problem (2 straps within one week) they were of no help & said it was not under warranty... They also said that they have never seen anyone else have this problem with the straps...and almost hinted that it was something we did intentionally. Anyone else run into this problem with the straps? Should this of been under warranty?