I currently have a Blue Hammer remake and love it. I've been able to use it sometimes when this particular shot breaks down and it allows me to stay in the track. 

I was wondering if anyone had multiple and how much difference did you see with layout and surface changes?  I've been debating getting another and keeping it a little polished and taking the first one to maybe 500/2000 to use fresh.

I had drilled 2 of these (pin up & pin down) and I did not see that much difference between the balls, so I gave the pin down ball to a JR league bowler for his dry lane ball. I still have the pin up ball for my spare ball & dry/short lane patterns.

Hope this helps...

I always change the surfaces on my stuff to find what I am looking for in the ball. I left mine at 4000 surface & love the ball now for what I wanted, which is prefect for spares & the drier patterns