I had a wind block on my Plus8 but had to remove it when the roll-bar was fitted. It had slot in brackers on the inside of side panels of the shelf area and a flap that fitted over the shelf area onto tonneau cover press studs. A handy cover for that area. It had some adjustment but not much. Not particularly effective but did reduce the backdraught. I still have it and am thinking of how to fit to the Plus Four.
Having shorter versions using the headrest fittings would mean individual seat fitting rather than joining the seats together?
The rake ( lack of) of the windscreen affects airflow resulting in a big swirl into the cockpit. I think the Aeros had more rake that would have helped.
Maybe I will rig a temporary fit to test the wind block on the Plus Four.
