Ditto on what arcticap said. I feel that being able to produce as much of your own supplies that you can lends to the fun of the sport. If there is a part I need, if possible, I'll go to the forge and build it. As for springs, I've never bought one, they're easy to make and temper. So making your own wads is in that same line of being more independant from having to depend on the high pricing of the items needed to shoot.
And those Blues Brothers hats are cool. I'm in my 6th decade on this planet and being a might older, I wear one a lot. But then again I'm an old Bluesman myself and it goes with the lifestyle I suppose (big bluesman grin here..)
Enjoy your weapons, have fun, and be safe.....maybe even in a Blues Brothers hat to boot!
Wade