Anyone out there have any experience with a manufactured wood gasifier? I have seen units from GEK ($19,000!) Product Overview - GEK Gasifier and also a Victory unit ($14,000) and the LEAF unit LEAF Generator | Low Emission Alternative Fuel at ($4,500)... I have seen all of the DIY versions, but it sounds like you end up making more tar than you do wood gas. Just curious if anyone had first hand knowledge to share on a pro model? PS there is a guy on youtube engineer775 that shows the Victory unit running a lot of things, FYI. Thanks!