Hope this helps RiD Hightower modification using Energon Strongarm: I have modified RID Hightower using Energon Strongarm's arms. It's a tricky mod. Remove E Strongarm's arms and keep the pins. Make some space inside Hightower and drill some holes to insert the pins. Make the holes bigger so that you have room to make adjustments. To resize the holes, just put putty or epoxy glue inside the holes when the pins are correctly aligned.