Update.
The new VR: 27700-15040 worked great to fix the charging issue. Now no flickering air/glow/turbo/overboost light on low idle or with lights on or anything. I'm keeping the old as a spare as it sort of worked and would work in a pinch. Might not be a bad long trip spare parts to use the old VR and alternator brushes: 27371-56612
View attachment 2068942
New parts are soooo purty sometimes!
Glad it's resolved your issue. While the New Era units are made in Japan, there's no substitute for the good old Denso OEM.