Let me explain the 60:40 split.
The knoweldge is easily gained and so should be pretty much taken for granted. If you have to work too hard to understand simple maths and Ohm's Law you're in the wrong game.
Good experience and good skills can only be acquired by someone with a good attitutude. e.g. staying late to find the awkward faults; testing by the book when you're tired, cold, hungry and late for home, completing certs and paperwork diligently, asking why and getting to the bottom of it instead of turning a blind eye, installing correctly when the practical problems suggest it's easier to not do so etc. These are all things which those with poor attitudes don't do. As a result, they never attain good skills and good experience because they just give up. They will only ever be run-of-the-mill.
I've never come across someone with a great attitude who didn't surpass the level of more experienced guys within a relatively short space of time.
From your posts, Ben, you sound like someone with a good attitude. This will be your most important asset. You might start off behind others in some respects, but you will soon surpass them if you maintain a good attitude.