[sheikdetailfeather]

Here is a fav of mine:

Dave Mason - All Along the Watchtower

https://www.youtube.com/watch?v=1n3f8NeUm-k

[DAC21]

I recall reading many years ago that Carlos also had a custom made block of brass embedded into his Yamaha that the bridge anchored into to help with sustain. But yeah, it was mostly amplification and peddle effects.