@FrancisPerson;
Thanks for the heads up! I'm definitely going to continue this experiment. If there's something I can't stand it's knowing that something should work, but I can't figure out why it doesn't. I set my mind to making my own tuned pipes some time ago, and after a lot of experimenting I cracked it! I now make pipes that weigh less and make more power than most of the commercially available ones.

@DDD;
My post wasn't meant to be offensive. I just didn't think it was fair when you said that I was copying your design: "May I suggest if your going to copy our head you do better to take a closer look"
I want to thank you for your input up till now, and I'll be sure to look further into the details you mentioned.

Cyril