I'm hot on the trail of the light pattern problem. The dud pattern was coming from the right side, and it appears that I had installed either one or both D2D globes upside down. With that problem corrected they now show a nice pattern against the wall of the shed, with a good differentiation between high and low beam. Night testing is still to be done, and I'll take some more photos of the corrected beam pattern like I did before. With a forecast max of 38 today, and dripping humidity, it's time to vacate the shed.
I've finally got around to photographing the beam patterns with the D2D LED globes installed correctly on my ST1300. I've done a reasonable amount of night riding with the D2D globes and find them somewhat disappointing. The LED arrays for Low and High beam work independently and the Lows turn off when the Highs come on. Have a look at the patterns in the attached photos. The extended tape measure in the middle of the light field against the carport door is showing the height of the middle of the headlight glass. In my view there is no decent low-beam cutoff, and with the High Beam set at the elevation that gives the best penetration down the road, the low beams are far too high and I keep getting "flashed" by oncoming traffic. There is still a high spot on low beam beign thrown to the right. Overall, the D2D have given me a rather unsatisfactory beam pattern, and I'm going to go back to my Narva H4 +120's which I think give better penetration down the road without upsetting on-coming traffic. Bugger.....
I'll take another series of photos with the Narva H4 +120's for comparison.