Just a quick little mod to help improve the figures leg poseabilty. What you'll want to do is have a very sharp modelling knife/blade and just shave off a little plastic from behind the knee joint. You're going to want to make a "stair-step" design with the back knee vents starting by shaving all of the plastic vent from the first vent line. Shave it right down to the knee joint. The second piece down on the vent, you're going to shave half way, and the third piece about 1/4 of it. This will give you about another 1/2" of movement in the knee joint for some pretty cool poses! I also prefer to transform my Vehicon feet in this manner- just hate the BOBO feet look. Hope this helps and happy modding!