OOC

[GM Marvel]

+2 is for using it as a paired weapon, and +3 as a single for the Wyroot, and +1 paired normal, and +2 single normal . Also don't MW weapons give +1 to attacks?

Do you mean you have a +2/+2  with Flurry of Blows? And then +3 when just using the Masterwork weapon for a single attack?  <see below for my calculations>

And as a monk, you don't need to pair weapons.   Your master work weapon can be used for ALL attacks.  

Remember the base attack with Flurry of Blows is equal to your level and then you apply the -2 for both attacks.  But FoB already includes this -2 penalty which is why it says -1/-1.  So using FoB should be Base -1/-1 + 2 for strength and +1 for master work for a total of +2/+2.

And using FoB unarmed should be +1/+1 not +0/+0.