I have an open gun with the wide dust cover cut back. It always felt to front heavy. So I had the slide lightned some. Then the muzzle rise increased so I put ports in the barrel after that it started diving; to much comp work. Went with the brian ti comp. Now it shoots good and flat but sometime's I wonder if I should not have just left it alone. I dont think it matters till one gets to A class or better before it makes a difference. Lighter, ported, shorty's are all for faster shooting. If you want to go faster get another gun in one the before mentioned designs.
Good shooting