Dave L,
Thanks much for the informative response. Your timer setup is what I was looking for, and I appreciate your adding the throttle cut feature. Weather just turned cold and rainy again, so looks like I'll have to wait another week or so to try your solutions real time.

Pippin,
Thanks for the link. I stumbled across it after reading another thread. Didn't see the second timer section, though, until today. Similar to Dave L's solution.

Bidwin