I'm a 'elderly dude'...started out playing slide for many years back in the 70's all acoustic. I quit playing for a few years then sold my stuff...had second thoughts and bought electric guitars and started playing with a flat pick...so I have been messing around for many years and find I have little talent but I do have dogged perseverance. I'm finally getting some vibrato but it sounds like a lily white boy's choir in Vienna. I am progressing though and Robert is a great teacher who presents and explains and demos his stuff very well.