All Attention

To the system with a 6D and 7D without problems. As lightning serve 2x the 600 exRT and a 580er ExII. Processing is top, even the often-called plastic ring for fixing is ok.
Will certainly order me a sentence. The accompanying softbox is totally ok as giveaway and allows new ideas to experiment.

So, 10 days later, I still ordered another set. I can use 580EXII and 600exRT in mixed mode (3stk.) Or, for example: use 2 600 with two cameras.
Absolute top in terms of price / performance.