2009 pre-amp vs the pre 90s preamp. Any difference?

So I ended up buying a Sabre classic after putting a bunch of pre-eb electronics in the 84 Sabre I bought that someone had unfortunately gutted. I figured if any components ever failed I have a second Sabre! However, I was wondering if the classic pre-amp(crescent moon circuit board) sounds the same as the pre 90s ones. I did end up buying two 80s musicman pre-amps and I could throw it in there if there’s a difference but I’d imagine all the components are the same right? And that they should sound identical and stuff! Really excited about both basses!