I know people are getting sick of this as it's dragged on, but I'm trying my best to work out what's going on.

I've drastically changed my bike position from:
Reach: 67 to 66 (same as bike fit 2015)
Saddle Height: 72.7 to 72.5 (bike for 2015 had me at 73)
Bars height - 97.5 - 97
The Saddle - BB has shifted approc from 7cm to 5cm (bike fit 2015 had me as 4cm but I can't get it that far forward)

Cleats moved backwards from position 5 to 3

I'm clearly not hugely senstive to changes, I'd say this position feels different in the sense I feel I may be getting more power down, there may be more weight on my hands but it's not having any worsening symptoms.

The front feels wobbly, it's an 11cm stem, maybe that's why?

I measured my inseam the best I could and it came out as 81.8 but looking at the documentation from a bike fit in 2015 they had me at 83cm inseam and I'd say their attempt would be more accurate than mine.

moved the saddle down to 72.5 and test as since moving cleats from 5 to 3 ( approc 4mm) the saddle feels higher.