It won't enhance HDR10 as such, the idea of VS10 is to optimise the output whatever type of monitor you use - so if you have an HDR10 monitor, it will output HDR10+, HDR10 and DV in HDR10. If you have an SDR monitor, it will output them in SDR etc - and it does a pretty damn good job too. For example, the VS10 HDR to SDR conversion is very impressive and a whole lot better than the Realtek conversion which shows posterisation artifacts in the colour space conversion which were prevalent in the 1296 and are still present in the 1619. At present there is an issue with the box sending unneeded HDMI resyncs which makes it virtually unusable for projector owners with long resync times, but once that's sorted I can see the VS10 HDR to SDR mode being another useful tool for projector owners alongside SDR.2020. But if you have say an HDR10/DV monitor, you want to set <auto> so that it all spits out natively. You can for instance get it to output HDR10 in LLDV, and Dolby will probably tell you that's a good thing. It isn't. Watching natively with a monitor handling HDR correctly is the ideal.