Agreed, looks like you’ve answered your question with a good approach.
One other idea, and one I’ve tried my last two ramp tests is to do an opener the day before. I try to do my opener about 24 hours before when I think I’ll do my ramp test. I like to aim for over 24 hours rather than under if I think it’ll be a concern.
Truuli seems to be a popular one. I’ve done the -1 version and liked it.