I'm now convinced that this gun is more accurate than it often gets credit for being. I'll even go so far as to say the performance difference between the HW45 and the easier shooting HW75 is mostly shooter technique - with a little assist of those weights out front to tame the recoil on the 45. I am using a fairly light grip on this gun, but, for me, the real breakthrough as to grip came when I learned to leave plenty of room between the backstop on the grip and the heel of my palm, allowing the gun to recoil back without slapping my grip hand. If you have a 45, might give it a try. Match grade accuracy from the HW45? I think it's there.
Taking a pic of my grip turned out to be quite a challenge. My camera is not designed to be shot with the left hand, so I had to enlist the help of my husband. He didn't get the focus the best, but here goes. Hard to see in the pic, but there is a gap in the vee of my palm which on a an actual 1911 would be firmly depressing the grip safety on the back of the gun's grip. This spacing allows the HW45 to recoil back with minimum contact with my palm.
Also hard to see is that there is also a gap between the front of the pistol's grip and my fingers and for the same reason, since, of course, there is also forward recoil. In essence, I am supporting the weight of the gun with my second and third g]fingers under the trigger guard with some of the weight along the side of the gun with my thumb extended on the left side.
Guess you might call this a crude artillery hold for a pistol.
As for the added weight, I used steel rings to anchor the scope with as many as I could squeeze on the scope and even added one in front of the scope, just for the weight. Totally ridiculous, of course, but all just an experiment to see what added weight could do. Once my curiosity was satisfied, I removed the scope and rings and went back to the factory iron sights. I still shoot it that way.
But the added weight certainly proved to me that the HW45 is inherently accurate when shot from a rest. One of my better 45 offhand groups.
Let me also add that I need several warmup sessions to get back to peak shooting with the 45. If I lay off for awhile, I have to start over to get back to that peak. Just the nature of the gun for me.
On then other hand, the ever mild and sweet shooting HW 75 is a gun that needs a lot less work to shoot, even though it has the same look and feel of the HW 45. Don't let the looks fool you, these are completely different guns. (Yeah, I do shoot the 75 a lot more.)