when i first reentered rocketry, i started with a polecat v-2 7.5 inch, after the learning curve not what i would recommend. now it is a great motor ejection rocket, but i got talked in to electronics. so after putting in the ebay it was time to test the ejection charge. called andy and asked how much powder do i need, response was a cap full. so i take my 5.5 foot rocket and set it in the front yard, did not attach the teather since all of the internet sights implied that the nose cone should not fly far. plugged the motor tube with a pint beer glass and while sitting about three feet from it set off the ejection charge. if you have never seen one of polecats kits the nose cone on a 7.5 inch kit is a subtaintial piece of hardware. it flew over the house and landed in the back yard. the only reason a knew where it went was the kids next door that saw me do this. do not repeat, it is hard on the fiberglass, and harder still to explain to the local cops.