Same message for you: Use AutoResolution, it will have the same number of lines every frame, just like you've programmed for your MK2 unit. No guesswork - if the monitor supports 50Hz, then AutoResolution is *very* likely to work, and it's perfectly V-Synced.
Very interesting feature this AutoResolution. So you can still make your custom resolution profile and then just checkmark this 'Autoresolution' feature and get smooth scrolling? So it will not force you to a specific resolution profile? Because I am very particular in making 1:1 profiles. Making the scandoubled profiles overscan show correctly as it would if the screen was plugged directly to RGB on a 15KHz capable screen. For me I usually end up in the 720x576 range for PAL and my perfect results comes if the screen switches to that specific resolution and 50Hz. Making perfect patterns and everything. With the MK2 I have 720x576 in both lo-res and workbench high res laced, so there is almost no switch delay. Yes, I know the more modern MK3 has solved the switch delay, just like the ECS V3. And yes, I know this is perfect for me and my needs, but other people might prefer other types of profiles, like filling the screen with most games that does not use the overscan area.
If so, would this feature be possible on the ECS V3 and TC64/TC64 V2?