Hi Marcus,
First of all great lesson regarding intonation and fine tuning!
However one thing popped into mind when watching this.
I know for a fact that one of my guitars, also my main guitar, isn't that great regarding intonation. I will be sure to sort this out as soon as possible and watch your lesson while doing it. However, since we sometimes mess around with the tunings in the band I wondered if this "messes" up the intonation much? For some songs we use drop D tuning but for like 80% of the songs standard Eb is the way I tune my guitar.
So, rather frequently tuning the guitar to drop D, does this mess with the intonation much? Is it necessary to perhaps always keep one guitar in standard Eb tuning and one guitar in drop D tuning?
Thanks as always for great lessons Marcus!