Is worth noting that there’s no option to use any time delay when using the new IBIS High res feature. I agree it would make sense but both 2s and 10s are disabled.
I see that some people are finding their shutter modes limited when it comes to the delayed options. Mine is not. I've been tooling around with the new feature with a 2 second delay. I wonder if it's how you go about enabling the delay. Just in case this is helpful to you and others, I just used the Q menu and tapped the 2 sec delay option. Let us know if that worked for you all.
As for the results:
1) Was disappointed to see that handheld really wasn't going to work. I have a relatively steady hand and regularly shoot at 1/10th of a second in woodcock season at 200mm, but I couldn't physically come close to getting it nailed for this feature without the zippidots showing up.
2) But putting it on a tripod totally eliminated the artifacts.
3) Of course, we're all shooting the other side of our living rooms, so this isn't the sort of subject that's going to reveal the utility of the extra resolution. I can say that photographing stuff on the other side of my office gave me the "feel" of it being about 2x the resolution.
I look forward to trying it out in a real-world situation, like a still landscape.