Can my CAS Savage benchmark be improved? CAS newbie

[StephenG1CMZ]

The call to exact was just something I tried to see if it affected timings.

Changing from PPL A to CAS a improved the timings, and changing from Global variables to local improved timings further.

I tried using a MAKELIST, but although it was quicker my implementation didn't give the correct answer.

Unfortunately, my Android App has just lost all its programs, so I've got some re-typing to do.