Where should I spend my science points?

[Superfluous J]

28 minutes ago, NewtSoup said:

Nice, fuel priorities is something I have to learn yet.

They're great, but I believe you need to turn "advanced tweakables" on in settings. By default, all tanks in the same stage have the same priority number. You can however bump the priority of lower tanks up a bit, and higher tanks down a bit, so the bottom ones drain first. In case you don't know, the further your center of mass is to the front of your rocket, the more likey the front of your rocket will remain actually in the front

[NewtSoup]

Just now, 5thHorseman said:

They're great, but I believe you need to turn "advanced tweakables" on in settings. By default, all tanks in the same stage have the same priority number. You can however bump the priority of lower tanks up a bit, and higher tanks down a bit, so the bottom ones drain first. In case you don't know, the further your center of mass is to the front of your rocket, the more likey the front of your rocket will remain actually in the front

Yes. I have discovered the advanced tweakables and yes,  I did know that putting more mass forward of the centre of thrust made the rocket more stable  that's why I went back and made it a bit slightly more tallerer.