I'm having trouble understanding this set up. I have the 622c triggers. Are you mounting this way to maintain remote power control of the RL600? And why do you need the middle accessory?
Thanks!
When FlashHavoc output the review with details on getting HSS working with the Rovelight, the stock transmitter was incorporated via a cold-shoe, pc sync cable, and a YN622 (or other that is capable of outputting a pre-signal for HSS). That setup eliminates the need for the YN622 on the Rovelight itself. But, you are then at the mercy of the stock transmitter's poor performance (which has lead to a replacement transmitter that is more powerful to avoid the mis-fires or lack of firing, etc). Personally I find it unnecessary, as it's more bulk on the camera and adds nothing to the system to do it. I went with the YN622 on the Rovelight itself, instead of trying to sneak in the pre-signal for HSS use via a cold-shoe to stock transmitter setup, like that, which has been unreliable since day one. Again, the newer transmitter replacing the stock one, may improve that, but it still lacks HSS and would still require a work around like that (the cold shoe option).
You retain the ability to change power levels on the Rovelight from the stock transmitter whether it's inline with your system or not. It does not have to be in the chain, so to speak, to change power levels. You can use YN622 on the Rovelight and 622 on your camera, with the stock transmitter in your pocket just for changing power.
Very best,
