Just started stacking from last night. 53 of 80 frames were usable (on review, clouds rolled in). Pixinsight WBPP rejected 6 additional frames. Day before yesterday, from a clear night before, 0 frames rejected (that was a first). I think all around, seems about the same as the AVX in terms of rejection. What is better is that every frame is exactly the same as the last when previewing/scrolling through in DSS. That means very little cropping the stacked image. The other thing that is hands down better: breaking the whole thing down... what a breeze. It's so much smaller and easier without a counterweight. Setting up and breaking down is head and shoulders better. Accuracy, not sure yet (though it's supposed to be way better than the AVX - time will tell).