Has nothing to do with disks. Go back a couple pages and look at the offset disk vs the 90 degree rotation slid all the way back to the heel. I edited my last post. It's all in the highbacks. The rotation seems to be more of an issue than anything.
Originally Posted by Donutz
If it's a choice between using the disk holes to get just the perfect stance width or using the disks to get just the perfect centering though, I'd go with centering.