If you want to accelerate your progress by acquiring good habits and learning correct basic skills from the outset, you can't do any better than buying a PB .40 for your basic trainer, getting a good and knowledgable instructor, and practicing what you've been taught lots. When you've truly outgrown its capability, and have a thorough understanding of and competency with the basics, sell it as a combo, buy your 46AX and blast around the sky then. OS' 40LA is as good a choice as any, and better than many.