I would argue that the GSG makes for a better training pistol than the Browning, but that's just my opinion. The reason I say that is because the GSG is a full-size and damn near full-weight 1911. If your training pistol is smaller and lighter than the pistol that you plan to eventually buy, you can still train in the fundamentals, but you then need to change your grip when you move up to the full-size 1911 and you also have to get used to the added weight. Also, why spend almost as much on the trainer as you will on the "real" 1911?