I sure like the color display on that Pro model you have. I have the same problem with the battery door. No rattle if I shake it, but just the slightest bit of movement as it shifts in my hand.
To me this falls into a subcategory, like a mini dual battery. I like it much better than the Manto X. It has a brighter display and the battery life is also better. I think I still prefer the Vaptio Capt’n a little more, but it seems like the Thor might have just a little better battery life.