I've been looking into this recently too, wondering if there is a magic (and cheap!) fix to get off camera flash with adjustable power using some cheap Chinese tech. I recently switched to Fuji from Nikon and I really don't want to buy more flashes as I already own an SB80 and SB700. A while ago I got a really cheap trigger/reciever set (cowboy studio I think) and they've never let me down. Last weekend I tried them on my X-T1/SB80 and they worked perfectly. But I really want to adjust flash power from the camera (or top of the camera as the case may be) so I've been trying to find a solution. So far it looks like a set of Cactus V6 II's are the way to go. The only hesitation is that they are a little spendy compared to Yungnuo YN622 TX/RX set...but the more I read about the latter the less it looks like those will work reliably with the Fuji/Nikon combo. Can anyone comment on this, or my particular set up?