Nothing wrong with your machining skills Rob, they are right up there with the very best IMO. Your designing skills are exceptional too. When you can swap a battery in under 10 seconds, refill the juice in under a minute, and have a great vape from a compact device, you have to wonder "where is the compromise?" but there is none I can find, except that one might want more Reo's. Glad you got a second CNC up and running, good idea to stick to the same brand as the other one, the dog you know is better than the dog you don't.