That's a good plan Rhaps. I think I might use my dial feeder, too. Plan to re-spray in a week in case there were eggs or babies down in the leaf axils that didn't get "got" the first time.
I asked our wonderful old entomologist over at the Extension office if it matters what kind of soap and he said it doesn't matter. I use whatever I've got under the kitchen sink. Today it's Method brand dish soap. I've also used Method liquid hand soap, and that's what was in the sprayer when my neighbor did his super spray job last summer. Worked great!
