As for the current SVL fleet and all the illegal modifications you say they have made, here is what should matter: they are still competitive with one another, but cannot touch the Fountain and will never be able to do so unless drastic steps are taken to slow it down. The sad fact is, however, that it is probably too late. I think the damage is irreparable.
This is the one (Well, maybe another one or two...

), area where Mike and I disagree. But, he is getting closer to being correct than I am at this point.
It is not too late if the Orgs and the current boat owners would agree to tweak the rules just a little, enforce the rules they tweak, and tech the boats and have a referee during the races. If they do not get together and agree soon, Mike is absolutely correct.
The main area of disagreement I have is the complexity of the rules. They do not have to be so dang difficult to tech monitor. Keep them simple. Goal, tech a boat in 15 minutes max,
MAX......
Boat must come from a mold, be of resin constrution, and every builder must have their hulls for sale to the general public.
Minimum width at transom - 2 people with a tape
Minimum height at transom and highest point on side by windshield
Water pickup through drive only - Visual
Maximum diameter prop, (Approximately 15.625 inches) - Template
Min-Max length - Two guys with a tape
Min weight - Crane scale in and out
Bravo type drive - Visual
Canopy - Visual
Single engine - Visual
Single Throttle Body type Fuel Injection - Visual
Restrictor Plate - Top 3 boats have it removed and checked with a template
Maximum Cu In - Top 3 boats have their engine whistled
Maximum RPM - Inspector has a reader installed on every engine in a locked box - similar to the GPS control box in the C classes.
Who cares about tweaking or modifying the bottoms at that point??? Allow it.
Parity - Win two in a row, added weight, lower RPM, smaller prop, deeper drive. Figure it out and do it. Win another in a row, more parity restrictions added.
If you have had a penalty added, then finish lower than 3rd, the latest restriction is removed.
Boat builders can still brag they have the most weight or deepest drive. ie; best boat design.
New builders come in.
New engine builders come in.
Fans see great side by side racing.
Racers actually race.
etc.
Tweak it, but it should not be as hard as it seems to be.