Yeah been thinking of getting one myself for a while but you don't hear much about it ( which with it being basically a beefy spare ball doesn't surprise me). Just never have been able to decide if it was worth the money over something like a Urethane.

I moved to the True Blood as a spare ball ( this year) and have no regrets. Rolls true and does hit hard - after all it is a Hammer. No issues throwing it at 10's or 7's.
Also plan to try it on extreme dry whenever I come across it.

That's because in the time it took to post this remark, Hammer has released yet another ball. LOL! But seriously, they have released a lot of balls that don't fit anywhere and overshadowed some good pieces. The biggest thing I have to ask, if you are throwing the ball better and having trouble picking up spares, how is a plastic ball with a core going to help? Plastics are created so that you can throw them the same way you normally throw it and not have to worry about hook.

If it hooks, hit it with 500/1000/Extender Polish or some sort of gritted or slip agented polish. That way the ball rolls more true and makes spare shooting easier. I do it to all the spare balls I drilled for myself and some others and they note how much better the ball rolls. My 7-pin spares have been much better and I can still use it in the friction to make combo spares. One of the biggest things I see people do is they flatten the plastic which, IMO, defeats the purpose of having the plastic.

I tend to shoot my spares 2-3 mph faster with a bit less hand, but i dont flatten my hand so I think plastic with a core would still go straight for me, but I could also throw that on dry and be able to hook