I am in Europe so I bought
Phallosan instead of Silistretcher.
Phallosan doesn't have upward pulling angle.
I improvised and using a binacular neck
strap and that works fine; but wondered why Pahllosan wouldn't provide upward pulling.
That led me to the question.
I am using all angles at the moment; but just thought that to optimize the time that I can do this (2-3 hrs 5 days a week), should I de-priortize "Upward".