Yes, we are still here.
Your FYI interests me a lot. I have a new (to me) QAD mount that I haven't installed yet. Photo below. It is .50" thick as compared to the original mount that is about .475" thick. I've had it several months, just haven't tried to install it yet.
View attachment 11754
Can you attach some photographs of your bracket?
Buzzard Bait (rmbeach)