Gilera Nexus 500 (& Multivar) Vibrations + Questions

Dear Maxiscooter friends, for two weeks I have been calling a chic Gilera Nexus 500ccm my own and am so satisfied. In order to adjust the starting weakness and the annoying vibrations in the lower speed band, I immediately ordered and installed a Multivar 2000 (version with 8 wheels). I ordered the belt half disc separately from Piaggio (since the original has only 3 guides for the sliding shoes and the Multivar needs the disc with 4 guides). In addition, I used the original Piaggio slip-on shoes (although the Malossi instructions said that you should use the original Piaggio slip-on shoes — I don’t get smart?). By default, my Nexus (1st model) still had the original variant of Piaggio with 6 wheels. This was then exchanged for the 8 multivar. With the result I’m satisfied so far: Strammer pass and clearly “softer” driving is now possible. A difference like day + night However, I have now from 90-1 00km/h clear vibrations in the footroom, which can really annoy on longer motorway rides. Sure, the Multivar turns significantly higher than the original vario – and with a single cylinder with such a power of course vibrations are normal. However, it can’t be that I hardly feel my feet when descending after 1h highway ride. Have already been through the forum and the topics regarding Nexus 500 + Vario/Multivar but on this special topic nothing statement-wrapped If someone with the 500 Master-Motor (if necessary also with Multivar) has found a tip/ advice for me on how to tackle the problem? Can it be due to the sliding shoes of Malossi? By the way, I have also installed the enclosed GDF. I am happy about every advice!