I have a castle 950 heated shield, and I couldn;t make the shield fohg when power is on to shield, highly impressed with how well it heats up
and I have 1 lung, and huff and puff like mad thinking about doing anything, never mind actually working hard LOL
I will admit the shield SUCKS when its not plugged in
and the first crack position on the shield IMO is too HIGH< should have a finer opening for just letting air in
Only real flaw's I can say with helmet for me has been if riding in a lot of snow dust and or sleet rain
I had a bunch of ice build up on the pin that holds the modular part closed, making it harder to close or OPEN, , if enough ice builds up there
but that was only once in a sleet rain and then a lot of snow dust, that was like a perfect storm for build up
and the drop down orange or what ever color it is, IMO is useless, and it rattles some, if you don't like rattles, it can get annoying, BUT it can also be removed, much rather if it was a black in color than !
other wise a nice helmet for me, warm dry, as quiet as any I have had, MAYBE a tad heavier than some others??
and NOT
IMO there AIN"T no perfect helmet out there yet!
someone needs to make one that has a electric shield with a small battery pack ON helmet, so NO more darn cords, heck MAYBE throw a small solr panel on top too to charge it as you ride too LOL