A quick report on Max's superior version, all times approximate:

Level 8 takes < 2 seconds. Switching curve type < 2 seconds.
Level 9 takes ~ 6 seconds. Switching curve type ~ 6 seconds.
Level 10 takes ~28 seconds. Switching curve type ~ 28 seconds. Done < 1 second.
Level 11, after some length of time, MoI seemed to time out(?), "ejected" the script,(?) or some such, and MoI will function again.

Did not observe a degradation of these times, when doing multiple switching between levels, or between curve type.

These levels have a ridiculously high number of bends.

So using calculate and objectList in the point creation recursion, (one point at a time), seems to be a poor programming practice.
Doing the calculate outside the recursion does so on all the points in one big group.

- Brian