If it's your 3rd time I would say you need to tell you dealer you will not take anything but the 06 rails with the reinforcements! If you don't get anywhere you need to call Yamaha customer relations. Once I talked to them my dealer called me back within hours telling me new parts were on the way.
My track is wearing right down the center. This is my second track doing the same thing. I have plenty of clearance between the shock and the track when the sled is sitting on the ground. I am thinking the track is stretching as it wears in and then ballooning into the shock on either acceleration or deceleration. I will have to tighten and see if that helps. I just like to try and run it a shade loose due to the hyfax wear, but since I started running the Polaris 5.35 wheels that seems to have helped on the hyfax a lot.