That's fine IF you live around a spit and fart from Kranks. Many of us, including YOU, Sir, do not, and the drive to Yorkshire to collect the stuff wipes out the difference for sure, with the cost of fuel on these isles. Whinemeal, I can get Pyrodex after a fifteen minute drive, or ask a pal [yes, I still have one or two] to get it for me.
Buying even the cheap stuff from Kranks STILL entails a £25 HAZMAT supplement - add that to your eighteen quid Krank's powder and that's more than the Pyrodex, right?
tac