You actually need lower pitch to slow the speed down. If you are running something like a 14x8, go lower pitch to maybe a 14x6. Each rotation of the lower pitch prop bites less air, given the same rpm of the engine. Are you sure your CG is correct? Nose heavy birds can often lead to higher landing speeds. If you are nose heavy, try slowly shifting your balance point back without getting the elevator too sensitive for your liking. This helps to slow the birds down too. It might be your particular plane just is not going to slow down more due to design and higher wing loading. It may just have to be landed faster than your other planes. Good luck! Let us know how it goes. Jon