I recently purchased a Gen 4 G17. I love the gun but have always been the guy that wants external safeties. I found a company that makes a very simple trigger crossbar safety mechanism called Siderlock (if you google them its the first thing that pops up). Anyone had any experience with these? I'm most curious if using this trigger is compatible with the 3.5 lb trigger connector upgrade I want to get and if it causes overall complications (FTF, FTE, or other). Any other feedback would be great though.