no plans to start as a business . . . . . yet! So far it's just been for myself and friends and acquantances.
Felix, I'd be happy to take a look at your tubes, see what can be done. In the first instance (and to save you sending them to me at the moment) can you take a few pics of them?
Cheers, Neil.
P.S. Thanks for the kind words, at this rate I won't be able to squeeze my head through the door!!!