I've tried everything, and I can't get hotspots to work, with anything beyond "minimum" setting in JCH, which gives me zero speed advantage. With the settings cranked up, I get an extra 20 points on the page speeds, but the data from the hotspots don't show in the hotspots sidebar.
I found that you had cited that it's the html minification that screws it up, as opposed to combining assets. But there is no way to make an exception for html minifcation, by page, or component.
Any ideas?