Following some neoprene advice (!!!) on here, I tried a flat profile expanded neoprene seal , which tensioned the hood and closed most of the gap at the top of the windshield. However, not perfect. So now I have fitted a seal strip with a D-shape profile, it’s about 10mm dia . It’s a bit awkward to get on (rear studs first, then screen studs, then lift frame, then side turnbuckles and all press studs). However, it makes a water and wind proof seal and so there’s less noise as well
