Rear cap preventative fix maybe?

[GTM]

I have read a few articles of the rear cap coming loose on various years and models of Mobile Suites. If I understand it correctly the failure appears at the lower corners of the cap. Now I understand the adding additional backing for the screws makes since.

Here's my thought. Mine appears to be tight and secure. So what if as a preventative measure I add lets say an additional 4 to 6 screws on each corner. I would use a oval head stainless screw with a finish washer to add additional clamping force, probably a #10 1" long spaced in-between the existing screws.

So those that have experienced this failure do you think this would help?