When considering a drop port using a joystick rest keep in mind where you like to position your hand. The brass may bounce off it. I briefly had one and went back to a 2 port with a tuned ejector spring. I am sure I could have modified my system to use it, I didn't want to. There have been some new models showing up from Borden & Bat on the top end, they are well out of my budget but if I had the bucks and were doing a new build, it would be hard not to consider one.....Personally, I am running a Hall a Bat 3L a Panda, and a Bat CT on my BOOMER.
Regards
Rick