I use helixes for cnc toolpathing. Typically, these have 500-1000 turns, but I'm more interested in the stepover, which is usually 0.007-0.010.

I don't really care about the bounding box on helixes like this, but I thought I'd mention the problem since it came up.

If its not a bug, but rather a safeguard, I wouldn't give it another thought if I was Mr.MoI.

Thank you for your attention. :-)

-Nick