Re: Tungsten Guiderods
JMB built no junk. Spend the money on practice ammo, and shoot!
My late friend, Armand Swenson, used to tell me that practice made better scores than parts, and he was extremely well respected in the business of making 1911's hum.
If you want a heavy guide rod, go for it, then, re-learn your pistol, with the change in it's balance, but SHOOT!!!
The 'magic' to the 1911, IMHO, is it's consistancy, shot to shot, and pistol to pistol.
The above being said, go to the range, at night, and hang some paper plates, at 25 yards; 100 watt bulb, between you and the plates, to either side, at 10 yards. Draw, fire, recover.
Practice puts 7 in the center of the plate, when you cannot see the sights; parts allows only a consistant ability to 'not see the sights'.
Just my .02.
Don't start no s**t and there won't be none, Terry