Hi Burr, so also maybe one thing that I didn't make clear before is that the each of the 2 modes use a really different mechanism to do their stuff.

The # of points mode is really simple, it just samples that number of points and does a "Curve through points" on those points.

The tolerance mode uses a curve fitting mechanism that recursively adds points to out of tolerance areas until it converges to the accuracy level that you have asked for.

They both build a new curve result from an existing curve, but process used is pretty different between them.

- Michael