QUOTE(woodyBCR @ Dec 11 2008, 12:18 AM)

Perhaps it's worth ( time and money) ordering blanks and making adjustments first ?
I don't think so. Buying a blank is much more expensive than buying some staples and cane. You can buy cheap cane to practise on - which I think is a good idea, at least until you have some idea of how to use the knife (either that or use some old reeds). Binding the cane on is not difficult, although it is easier for someone to show you than to follow directions out of a book.
It is also not to hard to scrape them to a playable state it is the final touches that I find hard. First of all you have to identify what you are not satisified with (actually this is fairly easy) and then decide what you need to do to improve it (I can usually do this too). The problem is that invariably when you scrape to improve one thing it also has an effect on something else so once you have solved the initial problem you find yourself with a second, and then a third and so on. For example, the high notes don't speak as well as you would like so you cut a slither of the tip and this then makes the whole reed too hard (or too sharp if you cut too much off). At this stage, I am always worried that I will end up making the reed worse instead of better.
This is not quite the same as adjusting a finished (and already played) reed which has hardened (because of changes in the weather or whatever). When adjusting a played reed you at least know that the proportions are already correct.