PVA sizing, Rabbit Skin Glue?

[Jeremiah White]

I want to experiment with different supports but I want to be sure that I'm sealing it correctly. I do have some questions that I figured that you all could answer. I tried looking up the answers in previous threads but the questions were a bit different then what I had in mind.

I've heard conflicting ideas so I wanted your opinions. Which is better for sizing a canvas, hardboard, or thick paper; PVA sizing or Rabbit skin glue?

I think that I have an idea of how to use the RSG from other threads but I was wondering about the PVA sizing. How much do you dilute the PVA sizing? I've read everything from 1 part PVA sizing and 1 part water to 1 part PVA sizing to 10 parts water.

How long do you usually let the sizing (both PVA and RSG) dry before applying gesso?

Thank you in advance.