As a starter, I've done a lot of experiments with RCing nats in the abyss. I've crafted over 125k so I can answer your questions from experience. 1) **WITHOUT SUPER ENERGY POTS** I've timed it, and it's usually anywhere from 1:45 to 2:15. It depends where you land in the abyss, and how many times it takes you to make it through to the rifts. Obviously, there are other factors, like PKers, but I seem to get around that time in general. **WITH SUPER ENERGY POTS** First off, these are a great investment. You can continuously run through your abyss trip and the super energies pay for themselves with the more nats and xp you make each hour. I can get in a trip in as low as a minute and 10 seconds. So expect, with super energies, to get between 1:15 and 1:45, with less time if you're a more experienced abyss crafter. 2) I'd recommend you buy a lot. You don't want to be interupted during your crafting too often. Try from 20-56. Anything above that is pretty much overkill. 3) I'm 82 runecrafting so I can use a giant pouch, which means it takes me a lot less time to craft 1k nats. (I also use super energies.) At 75 RC+ and super energies, expect upwards of 2k nats an hour. Below 75 I didn't use super energies and I was able to net 1.4k nats per hour. Good luck!