I had the opportunity to throw the Big Blue at a Hammer Demo Days, and I saw it as a relatively medium hooking ball, with a very mild, controllable backend. I think this is going to be a fantastic ball in the Hammer line, but there are some things that kind of make me wonder.... Hammer seems to be touting this as a big hooking ball, by the hook chart at the back of their leaflet that was sent out with BTM's November issue, and it also recieved a very high hook rating in that issue of BTM. However, Hammer has not (yet at least) put a hook rating or SF/ER rating for the Big Blue on it's website, although it's hook is listed at 42.2 (more than the Vicious Strike) at the back of that same leaflet, and the differential listed for it is very low
This is just my impression from what I saw at the Hammer test, the differential is probably correct, the hook motion on the hook chart at the back of the leaflet seems to be misleading as it shows it going long, and having a huge backend, I found just the opposite to be true, I think the hook path of the Power Diesel or Sharp Blade on that chart would be more accurate.
Again, don't get me wrong, this is going to be a great ball for Hammer, with a truly unique weight block inside of it, and you are going to see more Hammer PBA bowlers than you can count using it on those conditions, but I think some of the literature that has come out on it may be misleading. Just curious as to what some other impressions of this ball are.