wow! Adam, that guy really knows his 'tuning' theory and now I'll be getting ultra paranoid about recording. I've always been suspicious of all my tuners (especially on the high E) and I do have one of those single rack units so I guess I need to figure out how it works :-)
Here's how I'm tackling Jump without keyboards Mr B:
1 - Capo on 3rd fret, so I can chug that low C (pedal tone) with the rhythm parts.
2 - patience, especially for learning the keyboard solo on guitar. I break it up, learn a bar at a time slowed down, piece it together bit by bit, the usual method
3 - loads of practice, trying to commit the notes to 'finger memory'
4 - more patience, the tabs I found are not correct - now there's a surprise!
5 - I changed the tab to use different strings as it seemed unplayable in some parts
6 - A technique I use often is to 'mime' playing it alongside the music (guitar volume off). That helps me to fix the timing, get to the right frets at the right time and also to make sure I am truly listening to what I'm aiming for.
7 - did I mention patience?
Hope these ideas help anyone else attempting such a stupid idea :-)
GTB