Re: Earplugs (different)
I use them because the statistics of what damage can be done to your ears at various speeds for various lengths of time are horrendous. It's something absurd like 5 minutes at 70mph before permanent damage is done without plugs IIRC (although maybe it was 100mph). Can't remember what helmet they use and obviously I don't know all the details of how they've worked it out but it seems generally pretty conclusive.
Used custom moulded plugs for the last few years, though recently I've noticed they aren't cutting out as much noise as they used to and one of them hurts like hell after a short while. Ear canals must have changed shape. Only don't use plugs if I'm staying within town, otherwise I always have them in, and for my pillions as well.
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