Thank you for that D20MCK.
I think I will go for the 45C, just to be safe. Just for the sake of saving twenty quid (I want two packs), I could be ripping the guts out of a 30C pack and wasting all my money.
I'll buy the 45C and ask to be sent as a gift. If I have to pay TAX on them, HO well !! There still going to be cheaper than the other 'top quality' packs at about £95 each !
I'm sure they are up to the job at 45C.
Thanks for all your help guys, really appreciate it
Rob.