Im just gonna be cheeky now and drop this in because it will get some attention
Basically ive got 2 sets of 4x fins to make up a rear diffuser.
Theyre out of a high grade nylons so theyre pretty tough!
If anyone is thinking about making one up and needs the fins then PM Me an offer ( be reasonable as ive seen sets offered for £50!)for them and ill bring them to the meet.
As you were