The Point
I know I'm WAY late to this topic but I just stumbled onto it and feel like setting some things straight.
I had an old 3.5 fighter that used Monkey Grip with fantastic results. First I had him take Exotic Prof. (Fullblade), then Monkey Grip (making Fullblade a Huge weapon), then proceeded to specialize with it to reduce the penalties for carrying this BFB. I even liked using expansion....
The base Fullblade is a 2d8 (2-16) weapon and Monkey Grip makes it a 3d8 (3-24), the regular blade is roughly 5ft long (not counting hilt) while Monkey Grip makes it 9-10ft long (still no hilt) which would give you a 10ft reach on all your attacks w/o a polearm penalty of attacking things within 5ft. Meaning I would run up to someone and hit them from 10ft away, when they tried to attack me they would have to move forward and provoke an attack. If they had a reach weapon too then I'd get within 5ft so I could hit and they couldn't. Once I started to use expansion, things just slipped sideways. The first step made the blade do 4d8 (4-32) with an even greater reach of something like 20-25ft. Then I got a psionic one and went up two sizes increasing dmg to 6d8 (6-48) with a insane reach that covered most of the battle field, giving me the chance to make full attacks instead of moving.
BTW, I was a mounted fighter w/ Spirited Charge. So when horsie and I went up a size I could do MASSIVE damage on a regular basis. When I crit things tended to die.
Though I'll admit things got hairy when I was in tight spaces. Just had to start using the blade like a spear.
Also, if you get a lenient DM you could stack the effects on Monkey Grip and the Bracers.......8d8 dmg anyone? Or you could use it as a +2 to hit the larger weapon.