I'll chime in too. The more you learn about any rating system the less accurate it becomes. I have been "handling" a large portsmouth regatta for years. Remember the system basically is better than not racing, but that is all. Everyone (so far)is assuming the averaged portsmouth rate, as oppossed to the wind corrected rates. Meaning that the rating will even be less accurate for any given one race. Handicapped racing must be looked at as, friends trying to enjoy sailing together. There is very little meaning in the results. If someone is trying to "beat the system", then it becomes obvious to those who do know what is going on very quickly and obviously. And as a previous poster said it will most likely not be protested. The reason is because it is obvious to those of us who know better. It is the old saying, argue with an idiot and you start to look like one too.
So if you find that the new set up seems a little too sucessful, that is your clue it is probably behaving outside what the system contimplated for giving proper corrections for. There are several boats that I know of that you can modify and get a very good (or unfair) rating. Is it worth making a big fuss over it? No. However the sailors that engage in that type of activity may not know that they are not getting the respect from the other sailors that they may think is due them.
Rather than risk that out come, if you have a really "different" set up than what the other sailors have be prepared to adjust the rating downward yourself. There is only the respect of others that you are competing for, no money in this game. So act accordingly and you can't go wrong.