I always thought UBAB was simple. if you ONLY use the BAB from monk and use a monk weapon (or no weapon) you get itterative attacks at -3, otherwise you get them at -5 (like everyone else).
anyhow the changes that I would make:
Monks have a few problems as follows:
1: Stat split. Monks have lots of 'good' stats and a hard time choosing between them (str, con, dex, wis)
2: Low BAB. They get the middle BAB, and often have lower to-hit stat (str or sometimes dex) than say fighters, they also have a harder time getting magic weapons (or they have to use sub-par weapons) to increase this.
End result? you get a really cool character with lots of attacks, a great AC, and some other abilitys who quite simply cant hit jack.
fix? well I would give them the change from OA (added weapons, and the ability to swap out feats) and fighter attack progression. I would also let BAB from other classes stack with UAB. This would fix a number of problems.
1: the biggest reason for UAB is so that you dont have a monk multi to fighter then use his +19 BAB with -3 itterative attacks. If they already have fighter BAB this isn't a problem. also +1 to hit every 4 levels isnt going to unbalance the class.
2: It brings them closer to competative in the 'to hit' catagory without bringing them above the fighter (who should have a higher str, and much more feats)
This would give them an extra attack at fourth level (two before fighters), seventh level (just after a fighter gets his second), tenth level (just before the fighter gets his third), thirteenth level (about half way between a fighters third and fourth attack)
Note that they would not get an attack at 16th as a special case (same at 19th)
This could create problems, so how about a -4 attack progression to balance the higher BAB
5th level, 9th level, 13th level, and 17th level
That last attack would still be +1 better than a modern monk, and the prior attack would be even more of a bonus. This would fix the drunken master's need for special rules (they don't get more than 5 attacks due to BAB regardless of the fact that they should have 6)
anyhow the changes that I would make:
Monks have a few problems as follows:
1: Stat split. Monks have lots of 'good' stats and a hard time choosing between them (str, con, dex, wis)
2: Low BAB. They get the middle BAB, and often have lower to-hit stat (str or sometimes dex) than say fighters, they also have a harder time getting magic weapons (or they have to use sub-par weapons) to increase this.
End result? you get a really cool character with lots of attacks, a great AC, and some other abilitys who quite simply cant hit jack.
fix? well I would give them the change from OA (added weapons, and the ability to swap out feats) and fighter attack progression. I would also let BAB from other classes stack with UAB. This would fix a number of problems.
1: the biggest reason for UAB is so that you dont have a monk multi to fighter then use his +19 BAB with -3 itterative attacks. If they already have fighter BAB this isn't a problem. also +1 to hit every 4 levels isnt going to unbalance the class.
2: It brings them closer to competative in the 'to hit' catagory without bringing them above the fighter (who should have a higher str, and much more feats)
This would give them an extra attack at fourth level (two before fighters), seventh level (just after a fighter gets his second), tenth level (just before the fighter gets his third), thirteenth level (about half way between a fighters third and fourth attack)
Note that they would not get an attack at 16th as a special case (same at 19th)
This could create problems, so how about a -4 attack progression to balance the higher BAB
5th level, 9th level, 13th level, and 17th level
That last attack would still be +1 better than a modern monk, and the prior attack would be even more of a bonus. This would fix the drunken master's need for special rules (they don't get more than 5 attacks due to BAB regardless of the fact that they should have 6)