I have not had any carry problems. I think that just like with a reactive ball, it's a matter of getting it to the pocket while it is rolling but before it rolls out, and with an adequate angle to strike.
Most importantly for me, my regular lanes transition early and often and I can frequently make what I think is a good shot off my hand with a reactive ball only to be quite surprised at where the ball ends up at the pins. If I make a good shot off my hand and hit what I'm aiming at with my Blue Hammer, I know where it's going to end up. It rewards good shot making.
Like Strapper_Squared, I know a few high average bowlers who throw nothing but Blue Hammers. I was always a little curious about why they did that until I got my Blue Hammer.
Shiv
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Listening to the monotonous staccato of rain on my desk top