jerry, i bet what he did was put a full plate on the bottom (red). If i had a handle that wasnt broken that is what i might do, but even then the bonding surface for the plate is minimal (yellow areas due to casting of the plastic part).When I bought my Diablo the PO had made several mods to it. Strengthening the door handles was one of them. I just tried to get a pic but could not.
He cut a thin piece of aluminum sheeting to the dimensions of the underside of the handle. He polished the edges and glued it to the handle. I wouldn't have known it was there except he told me and warned me to open the handle carefully as they're expensive to break. He likely did this when the interior was apart (totally restored). I'll reach out to him and ask if he retained a template and report back if he did.
Funny you should ask, I almost made another post regarding this. I used the Murci strut. The previous owner redesigned the doors' speaker pods to accommodate larger speakers. With the added weight he suggested Murci struts. The pass side already has one and it's perfect. I swapped the driver's side because it was VERY difficult to open and close. I learned a hard lesson about a corroded hinge. After changing it out, I was discouraged to find virtually no change in operation.Did you replace strut with OEM strut for Diablo or from Murci, I did the latter and was too stiff at first but has relaxed over time to be perfect