Black Sheep that was a good article you attached.
I have been researching this option for my 64-3 HB in 4". My sight height is .170. Probably close to what a M65 HB is, I would think. I am wanting a Fiber Optic front sight that I can pick up faster in my application. (Defensive Pistol Match SSR Gun)
What I have came up with is a Novak Cut Dovetail sight for a 1911. Dawson makes front 1911 sights in .010 height increments, in both Fiber Optic as well as Tritium. The Dawson web site also has a sight height formula for a 25 yard zero. This formula tells how much to raise or lower the front sight for correction of zero.
1. Shoot your gun with factory sights off a rest with the ammo you are planning to shoot the most.
2. If you are High or Low determine the correction using the Dawson Formula.
3. Measure your front sight height and add or subtract the correction. You should now have the correct sight height.
The Novak Dovetail is 65 Deg X .330 wide if I remember correctly. It seems to be the most standard dovetail 1911 front sight cut. This is why I think it would be the dovetail size to use on my 64-3 HB.
With a dovetailed front sight you get windage adjustment.
You can change front sights for different heights if you change ammo.
You can go from Post, to Fiber Optic, to Tritium with no problem if you decide to go a different route later. Like if the wife takes over your gun, you can change it to Tritium for her a house or car gun.
Another option I have read about was a Lime Green Ramp Insert. Like a Red Ramp only Lime Green. No idea who does this work. A Green Ramp should be pretty visible, and retain the slick factory sight profile for a carry piece. For a CCW rig this might be a better choice than Fiber Optic. The dovetailed 1911 sight would probably be a better choice for a Tritium Sight I would think.