A Couple Questions On Making Cannaoil

ok so i just had a couple of questions about making cannaoil.

1. would it be possible to cook 2 seperate amounts of cannabis into the same amount of oil?
in other words can i cook more cannabis into cannaoil in order to increase the thc potentcy?

2. what would be the maximum amount of thc that could be cooked into 1 cup of oil?

thanks in advance

TTT... I would like to hear some opinions on this as well. I have some oil that I made a long time ago and would like to increase the potency by adding more plant and re-cooking the entire mixture to extract more THC into the oil.

Anyone with any anecdotal evidence or stories?