+1 on link belts. The stretching must be an environmental thing. I’ve used Accu-Link and Powertwist products both for nearly 2 decades and have never had to make an adjustment or remove a link in all that time. Where I live it never freezes and humidity is pretty stable. I consider them pretty much just set it and forget it product. On the drill press it’s especially convenient because they’re so easy to roll on and off the sleeves to change speeds.