Your set up looks sweet and bolt on is cool also! Nice work. It's reassuring to know that this modification has been successful for others. Thanks for the pictures... I agree with you about the lower mount needing to distribute the force of the suspension movement evenly. The 550 frame is a waif of a frame so I'm going to give it all the help I can with some beef. My lower mount will use triangulated 3/16th gussets to distribute the force equally. The top mount is going to be an X DOM tubing configuration that will be slightly angled towards the rear of the bike. I'll come off vertical part of the frame that runs in the middle of the air box and back to the angle frame member that runs up to the existing shock mount. The top of the shock will mount slightly behind the center of the X. All that beef will be stuffed under the air box and battery so a 11" shock is the maximum length to make it all jive. Ducati fortunately runs shorter adjustable rear shocks than most others on their bikes. That's what I'm leaning towards at this point.The one I got in my CL package deal,off a GSXR, is 14.5" long. No bueno.