"One of the traps I fell into in my early attempts at recording was to take the pan - the placement of tracks - to excess. So, for example, I might put, say, the voice at 12 0'clock (imagine a watch face), the guitar at 9 0'clock and the bass at 3 o'clock. Then I slowly realised that the resulting tracks often lacked warmth and "togertheness". These days I separate them just enough to give a little sound clarity - say 11 o'clock, 12 o'clock and 1 o'clock"

Yep, you're not alone on that, Will!
My friend who works for BBC Scotland pointed out to me that the sound was way too 'wide'. I remixed with the tracks closer together and it immediately sounded nicer.
I guess it's an easy mistake for a beginner to make. All part of the learning process!