I run 13/14 blades, with gorilla masts 400/430, sails are sensational on theses masts, plus their more durable i believe, and also full replacement warrantee and cheaper. i think you'd only go the redline for wave sailing, if you were a sponsored rider, or had money to burn.

ive got redline mast from ebay - with a red aluminium collar where the two sections meet, but no real idea of the age?

but when i tried rigging up a demo Blade, the bottom 2 battens didnt seem to come round off the mast as much as id expect ie 3/4 the wave over the mast still, despite what looks like easily sufficient downhaul (floppy in head between top 2-3 battens). I was wondering if the mast curve was now different (and hence the question about Gorillas - i couldnt afford new redlines)