I recently moved from using Canon 580EX II to Paul C Buff Einstein E640 lights for most of my studio work. I have a number of Lastolite Softboxes that I used with the Flash unit that I would ideally like to use with my Einsteins. I am currently working on creating an adapter for the Lastolite boxes to fit the Einsteins.
I ordered the "Fotodiox Pro Studio Solutions EZ-Pro Softbox Speedring Insert for Alien Bees Strobe Flash B400, B800, B1600" from Amazon
http://www.amazon.com/Fotodiox-Studio-Solutions-Softbox-Speedring/dp/B003EWNW92/ref=sr_1_2?ie=UTF8&qid=1418171100&sr=8-2&keywords=speedring+for+alien+bees and it works 99% - not quite perfect but perfect enough for the Lastolite Octobox, Softbox and Stripbox products I have.
Does anyone have any advice how do this? Has anyone done this before and (1) succeeded or (2) failed? Is there any reason why this is not a good idea? (I'm worried about the heat from the modeling light, but intend to turn those off when using the Lastolite softboxes).
I do have a number of Paul C Buff softboxes as well, but I'd like to reuse what I also have.