I recently got a great deal on two Alien Bees B800 strobes with the radio transmitters. I already own a 580exii. When I tried to mix the two in ETTL mode, I'm only seeing the 580 in the images. I think that's due to the pre-flash setting off the strobes. I switched it to manual, and now it's intermittent when I see both in the images.
I'm assuming I will need to switch to something like radio poppers to get the system to work, so my question is this: Has anyone else has this issue and solved it without the additional purchase of radio triggers? If I do need triggers, what would work best to set off both types of flash?