I received an e-mail from Skylighter today that included this article. http://www.skylighter.com/fireworks/...ks-Mortars.asp
The part I'm curious about is where he attaches the tubes to a base. Would this hold up after repeated use? Would it be ok for just firing festival balls and other ball shells? I realize that it would have to be inspected after each use, but if its safe it could save a little time and money.