Thanks Paul and CH for the great help
That was a close shave I nearly stupidly bought cast iron not knowing the difference from black iron derrr 
Thanks so much for your help I will try the black iron from the Bradford company you suggest
Cheers I'm liking this forum already!!
Not only did we save from an eventual hernia, them cast iron buggers are awful heavy to thrash around ;D, but we also saved you quite a bit of dosh, them not being very cheap either

. Cast iron cookware is a nice bit of kit for your kitchen but not ideal for us BIR cooks. Although an 11.5" would have been ideal as a tawa

. The only cast iron i have is my sizzler

. Don't forget to post the pics when you give your pan it's first outing ;D