@chrisLX200: can you estimate the latency on the integral LCD and HDMI out? Not interested in usb to display latency.
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I have yet to try the HDMI connection on the desk PC, it would be worthwhile to use it if only because of the increased resolution available via HDMI but sadly my workshop PC monitor doesn't have an HDMI input. I've got a [standard] HDMI > DVI adapter cable but of course the Adonstar uses mini HDMI connector

Also, I tried a normal polariser and also circular polariser filter - made no difference at all. That came as a surprise TBH, I would have expected some of the reflections to be reduced? Of course I tried rotating the filters whilst watching!