I have fitted up an F4 +4 today. On the bike it is much taller than I imagined it would be and I’m a little nervous as I have always had naked bikes in the past and I am not used to looking through a shield. I’m exploring my options. They say this screen is non-adjustable with the ratchet click system on these bikes. Is that because the screen requires more cut out at the lower edges to lower it? I'm thinking I might make some cut-outs and be able to lower it a little.