Glad you tried it. I've used my set up for quite a few holsters now. No change in power, hasn't used any oil. I have no issues with oil vapor, but do have have some transference of dye to the bag. I think when you put recently dyed, wet leather in a bag and suck it down its inevitable. The bag Adams leather works uses on his video is pretty brown as well. I dont leave my mo,dad holsters in the bag under vacuum for very long. I pull vac, form the front, stop, flip the holster over, and apply vac and do the back. Take it out of the bag and detail.