Ive been reading about this platform for a while now, very interesting. AFAIK, the reason it hurts to be hit by this is that it heats the water in your skin and yes, 130F hurts. I also believe thats its lowest setting and can be dialed up easily. Pity we wont have a chance to deploy it in Iraq and get some real world experience with its performance, potential counter measures, maintenance in the field/resistance to damage, etc... I see a lot of promise with this especially considering its excellent downfield range.