This is a great exercise for shoulder width. With this variation, every rep begins from a dead start. This forces the muscles to go from zero contraction to full contraction instantly. It also eliminates cheating. Just briefly rest the dumbbells on the bench before starting each rep.
Unless you have ridiculously short arms, you'll need a booster seat for this one. A few plates will do the trick.
As with all lateral raise variations, don't focus on lifting the dumbbell up, but rather "pushing it away" from you.
You're punks. All of ya'. All of ya' under 25 or so, that is. Mike Mahler calls you "Generation Ent," for Entertainment, meaning you need to be constantly entertained. Well stand by to be entertained, in a manner of speaking.
Prior to the early 90's, hardly anyone used scientific references to support their notions – not in real life and certainly not in the magazines. You just said what you believed and most of the time no one questioned you.