I got my Beretta back Friday. Everything is good now. I took it apart and installed the MCARBO pro spring kit and the LTT Optimized Trigger Bar. I also polished the internals. I used the 12 lb hammer spring and all other springs, but liked the stock trigger return spring better. There was not enough feedback on the MCARBO trigger spring for me, and was too light for my taste.
On the trigger bar, I had to remove some material from the rear bottom area to allow the slide to work when the hammer was down. The trigger bar would not drop down far enough to allow the slide to position to the rear.
Overall, I am happy with the results. I have a 2.5 lb SA and a 6.5 lb DA. There were no videos out to remove the frame mounted safety, but it was pretty straight forward. The most difficult part of the process was removing the very small pin holding the safety lever, and replacing the detent and spring positioned below the safety. This took me a while to get back together.