One thing that should be pointed out:
True Strike+Disarm is a good combo against people who haven't prepared to counter a disarm attempt.
Against someone who is prepared to counter a disarm attempt, your odds are only 50/50 if you're lucky.
Try it on a single classed fighter or barbarian whose attack bonus is probably 5 to ten points (after strength, weapon focus, levels, enhancement bonusses on the weapon, etc) higher than yours wielding a greatsword two handed with a locked gauntlet on one hand and suregrip (Tome and Blood) applied to the other. Even with true strike on your side, odds are he'll still win the opposed attack roll. Plus, he'll unload on you with two full attack actions while you're trying the combo. End result: you take lots of damage and he still has the sword.