I was having a fiddle last night ( as you do) and I discovered something quite interesting! No not that. The custom version of Dscaler that comes with the sweetspot seems to use far less cpu time than the regular versions. For example using tomsmocomp I fully expected to get 100% cpu usage . With Dscaler 4.17v2 it would hang around the 55% mark. This isn't a huge leap over 2:2 pulldown . This was with judderterminator and no filters ( sweetspot not needing any!) Has anyone else seen the same behaviour? However I do seem to get more "hairies" with this version (mismatched field artifacts on occasion) than I did with the tomsmocomp in 4.19. Is this a lite version of tomsmocomp? I would have posted this to the Dscaler forum but I'm unsure if that is the most relevant place for discussion.