I got my No Mercy Beatn Drilled a few days ago and I absolutely love it. Its the first ball coming out of my bag. I got it drilled to drilling 1 and i am a med tracker. The ball seems to read very well in the mid of the lane but still carries on down the lane and then just snaps and obliterates the pins. It really does hit like a sledge hammer.
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FURY 14lbs
Uranium HRG 14lbs
Enriched Uranium 14lbs
Maxim

I have a love/hate relationship with mine after 3 months. I didn't like the reaction out of the box. First of all I was extremely disappointed on the overall hook and the lack of drive on the backend. This ball does play nice for me on heavy oil where I can play outside around 1-2 arrow standing on 10 out to 7. I also like this on the Shark pattern because I can stand on 20 over around the 3rd arrow not much past out 15 playing straight. The straighter I can go with the ball the harder it his. Crossing boards with this ball I can do but it hits so weak. I didn't like the box condition so I polished it. Didn't like that either as it had ever weaker backend. Tried wetsanding to 1000 and repolishing it and was better but it wasn't until I stripped the polish with a wet scotch brite green pad I like the reaction alot better. One of the few balls I like dull compared to polished.
I kind of regret the drill pattern I used, the #2 with the Mass Bias to the right of the thumb. I was going to go with #1 or 4 and now I wish I did.

I don't know if I like the "hart core". This ball is a pain to rev up on the heads. It really to me reacts like a strong urethane. I really have to hit the ball to make it react well. This is not a ball I'm tentative on the release.

I've had mine a few months now and am really starting to see some results.  I also use a Doom and a Pain, and I wouldn't say the No Mercy hooks more than the Pain, but it gives a different reaction, revving up hard and going into a heavy roll before hitting the pins.  I was expecting more hook when i first got it, but have come to understand when to use it and what line to play for it to be most effective.  it is drilled with a 4 1/2 pin and the HART on the left side of my thumb in the first and second oil tracks.  it can overact if it hits the dry to soon, but adjustments in speed and axis rotation can keep it in the pocket.  and the carry with the No Mercy is simply fantastic, it just flattens the pins, keeping them low and kicking out the 10 pin consistently.
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It’s bush league psych-out stuff! Laughable, man!

I bought one of a girl that came in the shop and iwas like i will sell it 40 bucks. So brought it and i am 241 on my thurday night scracth league. So i love mine.