Hi Reg,
Phil (weary) has very kindly prompted me on this, and I have now read your subsequent PM.
Can I suggest you post the contents of your PM on here or on the other forum with some of the drawings?
I am very busy in work until the 25th December and I am not even sure if I have the drawings to which you refer and I have no spare time to check until after Christmas.
Cheers,
Julian