Bob:
It is an interesting question though, no?
But easier to answer in your case, given both courses just as is are so great, and serve such good purposes as you state. It would seem the potential improvement (if any) in a composite is not worth changing the perfection you have now. Of course now you add to the perfection (is that possible) by holding out the every so often opportunity to play a neat composite.
Very very cool.
TH