okeefe's page

Then you add the STR mod, any bonuses, and subtract any penalties. While flurrying, there's always the -2, as you are aware. So his PRE-STRENGTH attack array is

(+18/+18/+13/+8/+3).

I'm sure you probably figured that out, but keep in mind it is VERY IMPORTANT to not skip a step when you're figuring out how the attacks go together.

Ok, I think I've got it!

Ah! Ok, so "Flurry BAB" doesn't makes sense of a concept, but "Flurry of Blows Attack Bonus" (like the top of Table 3-10) does. In guess in that sense, the FAQ led me wrong.

So, the Flurry of Blows Attack Bonus is +18, the +20 as mentioned with the -2 as per Two-Weapon Fighting.

His BAB is still a 20 he has a -2 on the attacks but gains attacks for the whole BAB.

IE at 6th level a fighter 5/monk 1 would have 3 attacks on a flurry at BAB 6/6/1 the actual numbers before str and feats is 4/4/-1 this doesn't make him lose that last attack though.

I'm not worried about the number of attacks, just the BAB for now.

So you agree that the Flurry BAB is +18, not +20 as the FAQ says?

It's my first read-through of Pathfinder, and I'm figuring out the Flurry of Blows Base Attack Bonus logic.

Does anyone else think the Flurry of Blows example in the FAQ is incorrect?

So a fighter 19/monk 1 has a normal BAB of +19. When he flurries, he treats his monk BAB as +1 (for his 1 level of monk) and still gets BAB +19 from his fighter levels, for a total flurry BAB of +20.

Shouldn't this be +19 (Fighter BAB) plus +1 (Monk BAB for Flurry = Monk Level) - 2 (as per Two-Weapon Fighting) for a total Flurry BAB of +18?

This is also consistent with taking the Monk's Flurry BAB for level 1 (-1 BAB from Table 3-10) and then add +19 BAB for a level 19 Fighter to get +18.

If I'm wrong, where's the error?

Echoing what others have said, the Core Rulebook (all-in-one) pdf causes Preview in Lion to soak up CPU until it stops responding. As a workaround, I'm using Chrome to read pdfs, which works reasonably well.