Very soon I'm going to have a opportunity to try 4acodmt. My friend suggested 20mg as a dosage. Does that sound right? Could I have a breakthrough on that much because it seems a little low to try and make it all the way to hyperspace...

Thoughts?

20mg is a good place to start. You can always take more and work your way up, or you can smoke DMT on top of it for example and that will ensure you get as far or further than you could have ever anticipated.

I wouldn't say you could break through from 20mg oral 4-aco, you'd likely need significantly more, as this compound pretty much acts in the same was as psilocybin in mushrooms. You might be able to vaporize it but i think effects from 20mg of it would be minimal.

How should I take it orally or snort it?

And I agree I think it's too low a dose to have a breakthrough and that's really what I want.