Any plane with an elliptical wing can have pretty nasty tip stall. Many WW2 birds, ie. Spitfire, P39, P40, and others, have elliptical wings, and are therefore more prone to tip stalling than other warbirds such as the P51. Another thing to watch out for while flying tail-dragging warbirds is flipping over the nose on landings. This can be resolved by slow landings, but then you are in peril of tip-stalling if you get too slow.

What you might could do, if you have a built up wing structure, is sneak a little extra downwash into the tips when you cover it. This reduces the angle of attack at the tips relative to the wing roots. This forces the inboard portions of the wing to stall before the tip does, thus preventing the plane from falling off violently to one side when it stalls.

You could also preform the above "fix" if after flying your model you discover it does in fact have a particularly nasty tip-stall. I could not do this with my Spitfire because it has a foam core wing.