I put a Dawson Precision adjustable on my 9mm 5 inch Pro. I installed a .305 inch height FO front sight at their recommendation. It was too high which meant the gun shot too low.
They sent me a .285 inch and it works. They did not charge me for that second sight.
It works but has used a bunch of the adjustment. The .305 used all of the "UP" available.
I have a new 40 Pro 5 inch, and I will install a Dawson Precision FO front sight. I like the narrower blade available. I don't know if I will install the adjustable rear. The adjustable on the 9mm is a plain adjustable. I like that set up.
The firearms are used for USPSA production.
I am a fan of Dawson Precision and Apex Tactical.