Hello All, I'm wiring up my garage for a hobby woodshop but i have a few questions that I'm hoping you all can help answer. 1. I'm planning 4 20amp circuits leaving the sub panel. Before the circuits split at a junction box is it ok to run all 4 12/2 cables in the same 3/4 conduit? 2. I have a 200 amp main panel and i want to to a 100 or 125 amp sub panel. Most of the current main panel is full except for 2 slots. If I install the 100/125 amp sub panel is that ok? My father in law was telling me that he thinks since my main panel is mostly full that i couldn't run a sub panel because all "200 amps are used up" but i don't think it works that way. Am I correct here?