OK I broke it down today. Did the exercises on the forehand stretch shortening cycle described on VTA.
Working on the pat the dog position and the stretch shortening cycle. Please bear with the boring videos and tell me if this part is OK already.
Moved to half court cooperative hitting.
Moving back to the baseline:
I think doing the progressions has helped. The arc of the ball is much better- I do think when I moved back to the baseline, I look a bit stiffer/less loose. I do feel the SSC a bit more, so I suppose that's good. Will probably spend some more time doing these progressions.