I would like some hard data also, as far as belt life before and after "alignment." Lots of data as far as Grip n Rip numbers, but they are the ones coming up with the numbers, maybe BRP puts the alignment where it should be? And I have a very hard time believing that BRP doesn't account for load for alignments. I think they have built a few sleds and know a few things. My 19 sleds were great on belt life, no reason to think that my 20 sleds wouldn't be even better. Again, just riffing, before and after stats would be great, otherwise I am not spending $300 on the tool and messing with something that someone engineered with a hell of a lot more smarts than me.