yeah those MBE2 Machines are awesome! I have one and made tincture with it as well,
I used 1 oz white widow, 2oz everclear instead of vegetable glycerin, and instead of 4 hours I ran it for 8.
How did yours turn out? My patients are loving it made with the everclear, but I have a few patients that cant have alcohol, so the vegetable glycerin is what I'm thinking may be the route to go other than edibles, that is if its potent enough. Do you have a review on the tincture you can provide?