Hello Trevor,
Thank you for not simplifying your words, that is actually a good idea for how to get some good practice here.
You speak only one language, but a language, which a huge part of people in the world understand. I would be bit more sceptical, if I would be speaking about my primary language
For last days, I have been studying documents you sent me and I noticed term "stall speed" . Does it mean, that I have go to some car shop with a test chamber, as I have to test pressures under all speeds and with variable rpms?
Or I ask oppositely, I can’t do this whole process on my friends courtyard, with a hole, where you can go under the car ?
Thank you
Filip