I'm Scottish but live in France.
Been lurking for a while on here, I thought it was time to thank the contributors - past and present - for the fantastic information I've obtained here.
My first incursion into the world of crossbows was via backyardbowyer's excellent youtube videos a year or so ago. So, my first crossbow had a PVC prod. However, in Europe, schedule 40 is not generally available. I was always struggling for performance, and buckling prods. (BTW, if you are using PVC pipe, for more power, I would suggest using a slightly curved profile rather than the straight one backyardbowyer uses. Roughly 1/4 inch curve, with the apex 2/3 from the centre. )
My second attempt was with a 150lb Man-Kung fibreglass prod and oak stock. This, with a 11.5 inch draw, gave me 220fps with a 500 grain bolt. Very nice, but not easy to cock without a rope.
My current in-work project is perhaps more interesting : a magazine-fed compound based on two Man-Kung 80lb fibreglass prods.