Not that I can think of, and I gave mine a thorough test on a 2000 mile trip in the last 2 weeks.
I got mine through Motolegends.
Go on Motocentral website and choose the helmet you want,apply UKGSERS discount code to get 10% off.Then take a screen shot and send to Motolegends at their Price Beat email address.They’ll give you an additional 10% off so will bring the price of a plain helmet down from £429 to £348 and a helmet with graphics down from £520 to £421.
Also if you want the SRL comms kit then do the same thing.You also down pay VAT if you order the comms kit at the same time as helmet,so can infact save 40% doing the price match as well.