Thanks for all the replies and insight on this topic.
I took a deep dive into all the harnesses available and the are still plenty of good options. What it has boiled down to for me is the sliding hook vs fixed. Before my current sliding DaKine harness, i had a fixed and remember i found it less comfortable for my back. I think the reason for that was that I twist forward when going upwind and felt the sliding harness was much better for this.

Christoffer Rappe S-39 was a great course racer in the 90s and I always thought he had a cool style when i wached the videos (I was 12) so I copied it and still do it.
So I am getting a DaKine T9 slider. What do people who have used sliding hooks think the pros and cons of sliding vs fixed are?