United Artists wanted to do records with me. I had no idea, what a rare thing that was... to make an album. And they put a guy with me working on songs, and I got busy with films. I just kind of let it slide. Isn't that amazing? ↗
To get the feel of how the slider should roll off of your index finger, use this grip and practice at half speed and roughly half the distance to the mound. ↗