Ok, I think before there is miscommunication between what I am saying and what I think u r saying let me explain.
24p material is low frame rate, the motion will never be silky smooth even if it is refreshed at 96Hz. The higher the refresh rate, under normal circumstances, the smoother the motion. However, in my opinion there is a threshold. Anything above 72Hz refresh rate of 24p material ie 96Hz and above looks closer to video than film. This can be clearly seen in the end credits where the text is moving up/down....
Now, if there is motion interpolation algorithms that add frames while doing pulldown and then refreshing it at 60Hz or multiples of it (ie the smooth thing that u mention), will seem to show smoother motion. However, even the best of algorithms will introduce motion artefacts. If u watch close enuf, u will some some tearing or some sort of issue. This is more apparent in bigger monitors. Motion interpolation not done well will make film look like video shots.
If refreshing of 24p is done without motion interpolation at 60Hz via 3:2 pulldown, then there will be judder.
I am not sure what u mean but lag, but it shd be one of the 3 above.
However, if u feel the UT30 in smooth mode is giving u better motion smoothness, then go for it. Ur eyes are the ultimate test, if u like it then its right for u.
Thanks again for your feedback. Looking on the brighter side, do you think the 50" U30 is a best buy? What do you like about it?
It's sad that Panasonic will not release the 50" version of the UT30 here in MY.