Weird. Looks like the idler for mine is 16mm (well, 0.63") and the inside belt appears to be 8mm. On the Y tensioner, at least.Oh. Yeah, that seems to answer the mail. The only trouble I could see you running into would be with it being so tall. I measured the idlers on mine and they're 18mm tall, and 10mm wide.
you have retraction and z-hop enabled in cura? That takes care of most of the stringing and blobbing for me. The only other time I've had that happen was if the temperature was wrong (but that's usually accompanied by extruder popping).I was thinking the same. I still am having stringing issues, but I think I have an idea why. Once the glass bed gets in I will be able to do a few benchies and see if I'm right.