Dont Overfill
I do take your point and have stated the same in all my posts.
The glider only has pitch for speed on still days.
Attach a tiny motor to said glider and you still have pitch for speed with some power for speed but the dominant principal has to be pitch for speed.
Our original poster who is BACK
needs to keep away from a high AOA and high drag situation thinking he can control his speed with power because he probably cannot.
He nevertheless has to be aware of both power sources and their relevance as he may at some time require not just pitch for speed but power too.
Pace