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Rob, not advice as such but my own observations. I've got a kx, a yn560 and a set of the jjl triggers and I found it only took a few days to get the hang of the manual flash; what works for me in situations like you're describing, ie, shots in parties, nightclubs etc, is to take a few test shots at the beginning of the night in different parts of the room and make adjustments on the flash to get the best results and remember the settings - easy with the 560. Then I can quickly set it according to where I am, how far the subject is from me, what the lighting is like in that area, etc. Triggers are great, I use mine a lot. For example, the other night I had a few friends over for dinner so I put the flash on top of the kitchen cupboard, zoom at minimum, the pull-out diffuser over the front and aimed so it covered the whole (white) ceiling over the table. That was all I needed to do for the whole evening - it didn't matter where I was in the kitchen the lighting was consistent. You can also hold the flash in one hand - or mount it on a tripe or get someone else to hold it for you to get different lighting angles. The flash was £50 and the triggers under 20 quid for 1tx and 2 rx's, both from UK based ebay vendors so were through the door in a few days.