Reloaded has a 25% moon shot all the others have 19?% It seems to make sense to just make it 25% across the board; or have a even greater sliding scale that can go 99% , but have the D/F for that be like 2 billion or something.

YES! Excellent idea.

If you were to do a calculation much the same as the formula used for moon destruction, the amount of RIPs needed and the percentage needed, then ideally the more fodder waiting, added to the fleet needed in attack, this could increase that percentage.

Moon Shot ship? Something I have suggested in the past.

Any player could unlock it with required researches. Could apply the ship to their own colonies. Could invest into the tech and ship quantities to support multiple attempts in hopes for a large moon.