Best example of Malaysian Dwarfs are what you see in Chetumal and they are resistant to L. Y. but dont grow tall and the nut has no meat only water.
The most common hybrid is the Maypan which is bred by crossing the Malaysian Dwarf and the Panama Tall. That is what forestry sells I believe. It is a hybrid so it does not reproduce itself only one of the parents. Each hybrid must be cross pollenated by hand.