Hi mjwestla,
There are 2 ways connecting the 2 strobes to your camera.
1. Using 2 adaptors
2. Using a 2 in 1 cable.
If you choose 2 Adaptors, you have more options getting nice lightning in your photo. E.g. you can give 1 strobe to your buddy and send him behind the Object. You also have redundancy. If one flash fails the other still works.
I have seen the 2 in 1 cable on ebay some times but it is nearly same price like a adaptor.
My homemade mounting is made by 1 L form Aluminium bar. I had to saw some parts out to fit better. Problem is, that there is still some 5 mm space between the mountingplate of the INON mounting base and the Alu-Bar.
I solved that by driling a hole in 2 plates of Aluminium that was left from the sawing and they fit quite well.
I didnt have problems with that so far. But i think you have misunderstood me, i also have a mounting base from INON specialy for my WP-DC 300.
The home-made mounting is just to get that mounting base to the Sea&Sea multistay.



