08-10-2011, 06:20 PM
I have to share this, since it worked really well. I got the smallest bottle jack at the home improvement store, set it in the helmet with the base against the back and the top against the front. A few gentle workings of the handle and the jack was slowly stretching the helmet. I would leave the jack in for a while, remove it, try on the helmet, then jack it some more. It is now in a shape where I can wear it comfortably.