However, if you're going to buy a jepp chart with the intent of making it available in flight, at least take the trouble to know the material....You have no business whatsoever carrying the charts if you don't fully understand them.
Hence the reason for my original post.
Many thanks again to IO540 who very helpfully put a link up to a document that enabled me to fill the gaps in my knowledge - I'm now comfortable with the material and, should the need to file IFR arise during my travels in Europe, I'd feel safe using the materials at my disposal.
Now if I could just figure out how to stop coming out clouds inverted all the time.....