Indeed, you will need those before using these on the Inspire 1. I looked in both the propulsion and Inspire 1 areas and did not see any adapters listed as of yet on the DJI store. I just grabbed a couple of sets while they are in stock, and hopefully those adapters will be available soon.
Yep, shipping was a bit steep considering they essentially weigh nothing lol.
Also, found those E800 adapters on Amazon. they want $18 plus shipping (they are listed at $4 on the DJI site). Does anyone know if the $4 is per motor or $4 for the kit that includes enough for all for 4 motors?
Props and adapters are available for pre-order here:
Does this provide any benefit other than quick setup and dissembly?
Well, one thing that comes to mind is that you would also be eliminating the need for the prop locks as well as the eliminating the potential of accidentally forgetting to install one and have a prop spin off. Just one less thing on your pre-flight checklist to worry about.
Also, since the E800 kit is more of a cross platform propulsion concept, the availability of DJI having an excess of props seems more possible (and in my opinion, logical) since the threaded prop for the Inspire is so specific to just that setup. The potential added availability of spare props alone would be worth making the conversion.
Again, this is all just opinion/speculation on my part.