I also got the DL40 to review. Even for a non-diver, it really is a nice light. Those 4x LH351D put out a nice wall of beautiful light!
I have a few Wurkkos / Sofirn lights I’d be willing to part with. Wurkkos WK20S and Sofirn SD05 (which you mention already having) are a couple nice dive lights I have sitting around collecting dust. I also have a WK30 that rarely sees use… too bad, it really is a pretty neat light.