The Back tracker was my first quad!! Only Rev 1 or 2s were on the market until the tracker!! Just a little rich for my pocket at that time, especially if I found out I didn't like it!! Store in Lincoln City had Back trackers on sale - figured the price was right and if I didn't get on with it, no big financial loss!! Flew it over a weekend, first day , UGH!!! Crash, untangle, crash some more!!! Second day much better, more flying than crashing!! That fall, the store changed ownership and they were clearing out the old stock to empty space for new!! Got a Rev 1 at a good price and I've still got that sail!! Been though more stuff than I can say, but it still flies great!!! Time is a little fuzzy after my stoke, but I'm guessing that it was around 1997 - 1998, that happened!! 7 panel Rev 1like the one pictured on the Rev forum header, just different colors!! My son traded the tracker for an older full vented SLE!!! My opinion - if you can fly a Backtracker, you can fly any other Rev, no problem!!!