Hey peoples with the recent awesomeness coming to shield bearers i was planning on building a THF Bastard Sword/Board build that would switch to a 2-Hander when not tanking but since than I've noticed some people saying that the TWF line increases your chance to get a shield bash if you have the improved shield bash feat
Improved Shield Bash enables the character to retain the shield bonus to its Armor Class when using Shield bash, and grants a 20% chance to make a secondary shield bash while attacking with a melee weapon.
Two Weapon Fighting increases the chance to proc an off-hand attack by 20%, bringing the total chance to 40%
Improved Two Weapon Fighting increases the chance to proc an off-hand attack by 20%, bringing the total chance to 60%.
Greater Two Weapon Fighting increases the chance to proc an off-hand attack by 20%, bringing the total chance to 80%.
So players is this true and devs is this WAI.