Nik, Why does your 3D plane land fast in the first place? When we start moving the CG aft on most 3D planes, they tend to start dropping their tail on landing approach and slow automatically. Usually then we have to start pushing down elevator and carry a little power to land.
Check your CG location, a nose heavy plane will tend to come in quite fast .
Most 3D pilots seem to like to have straight and level while inverted with little, if any, down elevator input.
Just something to think about.