Bike fit / correct riding position

My bike feels totally dialled, but I'm adding Clip-on aero bars for long distance solo riding.

I havent recieved them yet. But I can already see issues regarding knee-pad clearance, and bar height ( run a 10cm saddle-bar drop).

I can see a lot of time spent on the turbo playing With this.

Happy to hear of any tips from those that have done this themselves.

Aerobars are odd, what was comfortable on the turbo all winter felt horrible on the road. What are you trying to optimise, aero or comfort?