Thanks
@seagull , they look a lot like Action/Reaction lines......Dr Alan Andrew's style.
If you really get into it, you will find there are harmonic's involved as well.
@Toastman used to do some similar stuff on Hot Copper, however he is not around at the minute, hopefully back soon though.
If you Google Action Reaction Lines, I expect you will get some hits, if you are interested..
cheers
