I bought one of the wave 2 Black Series 3 3/4inch Stormtroopers along with the 2013 Saga Legends Stormtroopers. Why you ask? because the Saga Legends 5points of Articulation figure's head sculpt nails the Stormtrooper helmet in proportions. Now as an articulation junkie I had to use this head on the better body. Low and behold this work in progress.
The Helmet just looks so right. Now you have to do a ton of drilling on the replacement head then make your own ball socket to fit whatever you're going use for a neck joint. I opted for using the single carded MU Cyclops neck.
He can look side to side, up and down, all the goodness you need. The body of the figure is a reuse of the Vintage collection Sandtrooper, so he has those saddle riding hips and a tab slot in the back for the Sandtrooper pack. I filled that in, but those hips man... terrible. They make the tops of the thigh armour rotate outwards when raising the leg up and reduce the knee articulation. Something drastic will have to be done about this by me.
Seriously Hasbo, just tool up that new head to fit your standard Trooper body. Also clean your paint apps up, they're atrocious