I really didn't like how long Bumblebee's legs were and that he was as tall as Prime, so I did a little mod to fix that. 1-Take the lower leg off. It’s a pressure joint so quite easy. 2-Remove the two screws that hold the leg together. 3-Take the slider piece out. This is what you will cut. 4-Here's a shot of both sides of the slider. The dotted line is right where you want to cut. 5-Cut the "B"! 6-The lower piece is no longer needed and even though it looks like you just cut off some crucial stuff, it still holds together just fine in vehicle mode. 6.1-If you prefer a slightly more complex mod that requires glueing use this step instead of steps 5 and 6. 7-Place the slider back in and screw the leg back together. I left the cut alone but if you want you could glue on a piece to the bottom to close off the loop. It really isn't necessary as the leg holds together very well and I haven't pulled it apart yet while transforming it. 8-Repeat steps 1-7 on the other leg. Snap the legs back on! A happy Prime with a shorter Bumblebee. And transformation is unharmed. The only drawback is that the back wheels can flex in and out more. Funny you ask, here's a "before" shot from a couple weeks ago!