Here's a thought: If you're a family where you regularly lose half of your active tops because of decisions made by the others (or should I say made by one, and grudgingly accepted by some of the others?), perhaps the problem isn't with the tops that are leaving.

I'm pretty sure it actually is a nub cake recipe.

If you think you need smarts or sneakiness to win on any server nowadays, you're deluded. Omerta is like a version of curling where you let a bunch of drunkards play against each other for a month. Sure, you might get in a nice hit in a rare moment of sobriety, but odds are some other wasted guy is going to run into you mid-shot on your next attempt, and it's all random from that point on.

Honestly, you might as well take the 3-5 biggest families and flip a coin to decide the winner.

This is fixed now and will go out with the next release. https://github.com/OmertaBeyond/OBv2/raw/master/ob.user.js if you want to get the fix now.

The "don't chose SH cars when random car is used" thing would have to be implemented by the game, we don't have control over that. We could add a way to make race cars work like heist/oc/moc cars, but that's a bit involved. Might happen at some point, but probably not too soon.