Hi PEER

A brief partial reply on lunch break:

I use the script _PointCoordinates3, which is ParseFloat to 6 decimal places, and does one point at a time.
I think it uses the same data as your script.

I've read in the past that computer binary representations of real numbers are not perfect. They only go to, or are accurate to, a certain number of decimals. The programmer does the best that they can...

3 points sounds like the combination of 3 things, taken two at a time.

I figured that "crossing over" might cause some type of problem.

- Brian