Rangerboy1963 - Welcome to the forum.
Unfortunately, I've already given away my Sammio Cordite perspex screen to another builder.
But here is a photo of them so you can see they were supplied "flat".
There was no need to heat them, the shape allowed sufficient bending to fit.
( The Spyder screen is a slightly different shape, but worked in the same way. )
Hope that helps and good luck, Paul.
