Thank you for the comments.
I had to move the saddle to where it was anyway as further back was uncomfortable for me.
It looks like I could do with a little bit more reach, but this is something I will try to achieve with the new extensions + higher risers underneath the arm rests. There will be a lot more adjustment options compared to the current set.
I will definitely try the technique as I have a feeling that my shoulders are quite wide and are costing me a lot of time.
For the time being, I was able to ride comfortably in the position for 2hrs+ doing various efforts. I was satisfied with the power output too as I could hold 96% of the FTP (from a road bike position) for 25mins at the end of the two hour block.