Hi guys Well, What a lot of information to digest. Thank you all so much. I must have spent over two hours checking helmets against the SHARP index. What I am after is a helmet with ALL the boxes ticked but mainly 4 GOOD - green results on the Sharp tests. Does anybody know if there is a website that you can enter your requirements, tick box style and it will pull together the results? I started off comparing all the 5 star helmets and surprisingly enough, many did not have the 4 x green SHARP spots. Please can somebody explain the difference between Full Face and System helmets? Thanks. I wear varifocal - transitional specs but would like a pull down Sun visor, Anti scratch, anti mist, removable liners and cheek pads, possibly bluetooth option, multiple shells (I am assuming that gives better protection) I am not too certain if the Quick release visor is a necessity and is the Double D ring closure butter than a one-click release? Quesions, questions, questions. Some of the Shoei helmets don't have all the options with 4 x green SHARP test results. Cheers Margaret