@Bobjoezonehill what about this

@AwesomeBoeingMaster788
I can fix it if you want...

What it needs is nose weight. Needs to move the CoM forward. here is a good tip: take the horizontal stabilizers off. Then look at the CoM/CoL relationship and base the balance off that. The stabilizers dont provide lift so that is the true relationship you need once you got it right, then put the stabilizers on.

I know the feel. had the same pitching problem with my corsair.

@Bobjoezonehill i know im not really sure how to fix that i know its the wings causing more lift but i dont want to remove them. Its a biplane!

@AwesomeBoeingMaster788
That one is more stable for sure. I actually had to try a little bit harder to get it into a flat spin. But it recovered the first time. It still does bobble and has an annoying tendency to pitch up on its own.

@Bobjoezonehill what about here

Very unstable. Pitch down is suicide and sends you into a flat spin.