Just picked up this unit, it was listed as "serviced" but I fully expected that to mean they just slapped whatever belt they had on it. Sadly I was right on that call, so I'm going to be replacing the belt but I also want to replace the pinch rollers while I'm at it since they're hard and smooth. I'm planning on ordering the pinch rollers and belts for the wm-109 as I'm pretty sure they're the same mech and belts and rollers for specifically the 607 aren't available on fixyouraudio I wanted to ask if anyone had experience on this model because I've tried twice on similar models the wm-100 and the f100III but I wasn't successful. It can get quite fiddly when trying to get the head bridge back in. Luckily this 607 doesn't seem to have the springs that pull against the bridge as those were the most difficult part. Any tips? Thanks!