It was the airflex turbo it was tested againest!!! I kow the guy that tested it and he disliked the scorpion thats why he had a airflex! so he's not biased what so ever, if he didn't like it he would say, he told me it seems very powerful compared to the airflex, but like i said in an earlier post, lets give it a few months to establish any reliability issues, because i can remeber on here and other places where the airflex was slated because it was new and not proven and the scorpion had been out a long time and was proven blah blah blah Same as the Jag it's not proven, it seems good right now but still needs time on the market to prove its self, I've owned a scorpion and sold it after 4months for £1500, i just didn't like it, but others rave about them, same with anything really you need to see it in the field in a real working situation before you can really evaluate it!