@BisonHero: Cool, thanks. That's the info I was looking for. I saw somewhere online (IGN, maybe) that all three upgrades improved the chance for a crit, so I was confused.
kungfugrip's forum posts
I just got to a point where I have the option of getting Improved Pistol I, II, and III. Should I buy Improved Pistol III and skip Improved Pistol I and II, or is there an advantage to having all three upgrades?