I have been shooting and spending some quality time with my KJF prefix Melonite 4566 lately. So I thought I would add to this thread rather than start a new one.
I have been rehired at the local indoor public range as an instructor. So I have been shooting A LOT more. We are experiencing problems in getting ammo, like everyone else. But I bought quite a bit of ammo when I wasted a few years selling guns at the local high end gunshop. Ammo was cheap and plentiful so I put back a bunch. Just in case. Now I can burn up some. And I also shoot the range ammo and customers ammo during instruction. Yeah, I can't believe they pay to do it either.
I picked up a 4563TSW recently to use there. But shooting it and some of my other aluminum framed 45 guns, frequently, has started aggravating my shooting hand. Ome of my customers who is a Doctor examined my hand and opined that I may be developing arthritis in my strong hand. He suggested more 9mm shooting and less 45s to lessen the effects.
I found that if I shoot my all steel 45s, I have less problems. Nothing an Advil can't cure anyway. So I broke out my old duty gun, LE Special order 4566 with spurless hammer, PC 4566 45CQB and the Melonite KJF Prefix 4566. Spectacularly accurate pistols that are fun to shoot. With the standard bet your life reliability I have enjoyed from my 3rd gen guns for decades now.
And I have really been enjoying the KJF 4566 in particular. It is particularly accurate and easy to shoot well. With all the practice I have been getting, it will shoot sub 3 inch groups out to 25 yards. Even smaller groups in close. Even with the garbage range ammo.
The fellows I work with are all younger and all former/Current MIL/LE. Their experience is vast and so are their skill sets. But prior to my coming back there, none of them had any exposure to TDA metal framed 3rd gen guns. They have it now.

And they like them too. Enough that we recently bought and put into the rental case a CHP 4006TSW. And the guys are shooting that one regularly. In fact, one purchased a 5906 and another is wanting his own 4006TSW.
They have all shot my 45s listed above too. And are frustrated that those models are out of print and the particular variants I own were made in such small numbers. The PC 4566 45CQB is one they all wanted to find and purchase - till they found out there were only 91 produced.
The KJF Melonite 4566 ws another big hit with them. Particularly with a couple of the former military guys who had used 45s while assigned to special units. One had shot HK45s and liked the added weight of the 4566. He shot the KJF 4566 like a laser.
Anyways, I am still very grateful to my friend paddlingman for putting me together with this fine 45! I am still thrilled with it and have started carrying it again. One of the nicest 45s they made. Regards 18DAI