It makes sense that higher speed takes more power, and it's really cool that they built in the functionality to allow making the trade off between speed and power.

If I had an idiot's guide to the .INC file, it might have saved me some head banging.

Anyone recommend a book that covers the subject?

The he code that DaveC3 sent, offers me food for thought, and it enabled me to get my program running. It would be great if I could find a guide that explains each element of each line (sure some of the info is in the device manual), but I am open to literature that might be able to impart wisdom.

Cheers!

Taitny