25TTs/ 1500 elements tooks me about 2days.
And was the result satisfactory?
So the relationsship number of TT's and calc time seems not to be quadratic (fortunately), but not linear, too
And I think it also depends on the complication of the object.
Sure, thats the reason a simplification/speed up of the calculation, which is done in every step of the iteration (in your case the Make_Theory() routine) would greatly influence overall calculation time. In my demonstration template the calculation time was much smaller just because the single iteration step would take much less time as in your task.
