Slartybarfa.
The circle guide it fine. The RIP front clamp is the problem for the A81 (size 14 torch). They have slots in the tops of the clamp, so it can be zip tied down. I did not try it, but the slots are there. Will wait on the new part.
For holes, the circle guide is fine. See pictures a few posts ago #14, that worked fine.
I have not heard back anything yet on the rip clamp but it's only Wed.. No major rush, but the RIP was the key part for me. Square to channel was the plan.
The circle guide works fine with the A81, it is the RIP front clamp that is too small. I have another torch I can put on it if I really need it, but like the A81.
I liked the machinist joke and sure that is why PosixPilot just ordered one too. The craftsmanship is nice and well worth the price.