Well It was me right beside Nige on that day at Freekz and I remember It like It was yesterday ! ! it was like an army tank that just fired out of It`s muzzle right next to me with poor old Nige staggering , Stunned to the eyeballs , with his jersey on fire and melting in places the size of my hands, the exploded Stacko air bottle was a foot into the ground with his Ego gun twisted like a figure of eight in another direction and the hopper was strewn into about a thousand pieces everywhere, there were others there that also used a Stacko bottle and every one of those were thrown to the ground on the spot for anyone to take if wanted to for free ... there were NO Takers, In fact It was Kitch that kept the cool with everyone that was dumping them, from that day Stacko bottles was a HUGE NO NO. Now for what ever reason caused then and for anybody to use them at present I would suggest you have a damn good insurance policy not just for yourself but for any persons around you.