Starting to pump: how to be efficient and avoid problems?

Hey guys, I just received my manual pump and I'd like some tips on how to start using it.

1 - I've been doing manual clamping and soft clamping every two days for a few months now: how can I incorporate the pump into my routine?

2 - I know that edema and discoloration are inherent to pumping, but I'd like to avoid them as much as possible. What should I do?

3 - The recommended pressure level varies a lot. I've seen some guys suggesting 5 inHg, others 8 or 10. What would be a good pressure to start with?