Playing with light

I've had a very frustrating day trying to get my Pocket Wizards to work with the Canon 600 EX-RT's and Yongnuo 568 EXII's and all to no avail. They trigger when I press the test button, I have checked they are all set to the right channel and I have done firmware updates on the camer, the flashes and PW's but still aren't triggering! If anyone can offer any advice, particularly near Edinburgh, then give me a shout and I will happily by beers if you can get them working.

By the end of the day, all I had to show for my efforts was lots of black frames from the flashes not triggering so I went for Plan B and found something intersting for me to take a shot using natural light. I quiet like this. Who said you shouldn't play with your food?