So I'm planning on planting a mini-orchard this Spring and torn between dward and semi-dwarf apple trees. There appear to be pros/cons of each. Dwarf might produce fruit sooner and the volume of the root structure is not as large so I'll not need to ammend quite as big a volume of soil for each planting site. They are also all grown on rootstock that seems like it's more susceptible to disease. Semi-dwarf might be more hardy, but longer until we reap any rewards and much larger amount of soil remediation would be required. Are my perceived pros/cons correct? Any opinions/advice would be appreciated.