Basically it's stringwalking for one known distance, but if it works for you it can be a very effective hunting method at normal ranges. I've played around with it a bit using my normal 3U/high anchor, but had more luck at reducing gaps with a high nock sets as demonstrated in Dewayne Martin's videos. Also, I naturally cant and gripping the string 3/4" below the nock just seems to take the shaft further out from under my eye. There seems to be significant downward force exerted on the arrow by s-walking, as it works essentially by mistiming the limbs. Jimmy told me true walking is hard to do off the shelf without an elevated rest, but alot of folks have relatively small fixed crawls and it works okay for them. Folks who walk seem to overwhelmingly prefer "springy" type rests.