After meaning to make a sling for ages, I once again came across what is the site on the subject, http://www.slinging.org/, and decided “goddamnit, get off your ass and make one already.” I spent the afternoon trying a few different approaches, and wasn’t so thrilled with them. I recall seeing this particular tutorial years ago, and attempted it. Worked out nicely.
I will be happier tomorrow morning when I am flinging rocks out across the lake. There is a very steep learning curve with these. Accuracy will come with a lot of practice. But for now I will be thrilled with speed and power and distance.