Hi Brian,

Some nice test results there, Well done!!

Here's an interesting result or side affect that I got.
Not sure why this happened, but could prove handy for some Oddball ideas later on?

Created a test Toroidal, then created a Profile & used Sweep.
When I moved over the resulting Sweep, there looked to be a different formed helix contained within it.
Selected this new form, Copy & Paste, then another Sweep using the original Profile.

regards Colin