This tip is for an easy way t' create fin templates for an upscale or downscale project - inspired by t' 2008 challenge.

Drawin' around t' fin o' t' normal sized fin makes a template o' a fin.

Then usin' a photocopier, matey, select t' reduction/enlargement function, and photocopy away. Avast, me proud beauty! Best t' make a few copies.

T' result is a perfect downscaled template t' create t' new fins.

There is little point in doin' this for straightforward rectangle or triangle fins but where you have a fin with difficult angles t' copy it does speed things up.

T' same principle can be applied with a scanner/printer. Begad!