Dave, I agree with you that for certain applications, a balanced rod is a must. We both agree that a balanced rod helps to eliminate fatigue.
A rod with a balance weight in the butt makes the tip 'feel' lighter, but in fact, the weight has not decreased in the tip, it has increased in the butt. Regardless of how the rod 'feels', it's not lighter, it now weighs more which reduces sensitvity. The most sensitive rod is the lightest rod. All of the 'new technologies' that mass production companies are using now to reduce weight on their rods have come from custom rod builders (split grips, 'micro' guides, spiral wraps, etc). If a flippin' stick is built properly with a split grip and micros, it will be extremely light compared to a rod with a full grip and double foot guides (like most flippin' sticks have). You may find that a rod built like this won't need a balance weight in it.
I personally would never use a balance weight on one of my rods. I prefer the sensitivity that the reduced weight gives me. Now, I've built alot of rods with Fuji's weighted butt cap in them for clients (have to give the people what they want), and many of my clients swear by a weighted butt cap. To me, it's a matter of personal preference.
There are some companies that are coming out with rod blanks that are made of blends of graphite that are comparable in action to glass rods but at a much lighter weight. I've only had to opportunity to build on one of them so far, but I've been very impressed.
I envy you for your tournament fishing career. I wish I had more time/money to tournament fish. I have too many hobbies: rod building, lure building, hunting, fishing, and backpacking. I'm sure you've had alot of fun and learned quite a bit. If you ever find yourself in need of a custom built rod, give me a yell.
jeremy