Try to give some thought to what size/brand of modifiers you will be using with the lights. the BXRis, while more spendy, MIGHT be a better long-term buy.
The new Dlites, while having the swivel lock of the BXRis and a thicker plastic housing and some other goodies, attach the swivel mount to the body with the same plastic dovetail as the old models (the top of the swivel mount slides and locks into plastic slots on the bottom of the light itself). Images of the rear of the light on Elis web site will make the part clear. Press in the right place and you can unlock and remove the swivel from the body of the light. On the BXRis and higher-end lights the swivel appears attached (never took my BXRis apart to get the gory details) to the metal housing of the light under the plastic shell. Much more robust.
That dovetail design is a weak point IF (note IF) you want to use heavy modifiers. On the old units the swivel was infamous for creep so people, self included, modified them with parts from a Manfrotto mount. Worked great. But having locked the swivel mount solid, the next weak point in the design reared it's head - that dovetail mount. In my case, I had the dovetail on a modified Dlite crack when I mounted a Mola Demi to it. Nothing hit the floor, but only because I felt something give when I started to take my hands away from the Mola.
The Dlites are great lights, but new or old, they are not designed to be used with heavy, front-weight biased modifiers. I've used a 53" eli Octa with no issues, but I'd avoid anything beyond that. The 53" while big is very light. Comparable units from folks like Chimera, etc use much heavier fabrics and are not only heavier but more front heavy as a result - putting more stress on dovetail socket. With a BXRi, RX etc - just mount away.
Again, great lights and feature rich, but before buying, give some thought as to what you see yourself using on them in the intermediate term, how long they may be your only lights, etc.
