I've got a Phone Skope adapter for my Kowa TSN-553 but it is finicky to use (can't see complete sight ring without having to constantly adjust it). I was wondering if anyone had tried an adapter from one of the other companies? I did try a magview but it didn't work and when I contacted them, they confirmed they don't have an adapter that will work. I'd rather not order more without knowing that it will fit well. Any advice?