All of the greatest blues and rock guitarists - such as T-Bone Walker, B.B. King, Albert King, Eric Clapton and Jimi Hendrix - routinely incorporated this technique into their solos
When soloing over dom7 chords, the inclusion or substitution of the major third in a minor pentatonic line always sounds good
Force yourself out of the same old, familiar position-based patterns and into new, uncharted territory
Applying this construct to any improvised solo will automatically force you away from playing familiar licks and standard melodic “shapes.”
It's super useful to familiarize oneself with modal scale positions and patterns and learn how to navigate them with the slide.
One of the most challenging aspects of learning slide guitar is developing a consistently pleasing vibrato.
When it comes to spontaneous, improvised phrasing, there is perhaps no better blues-rock guitarist than Eric Clapton.
Learning slide guitar in standard tuning allows you to focus on fret-hand touch and pick-hand articulation without having to re-learn the fretboard and chord forms in an alternate tuning.