Thanks Custardspc!I'm planning to do the IR, I'd really like to do an IR(R), but doesn't seem worthwhile if I'm intending to do an IR in the next year or two. I've read the pooleys IR(R) book for knowledge, it doesn't mention much about airways, so was curious to how they work and if I could implement them into my VFR flying.
I've have a look at Skyvector now.