Just to get the pot brewing. Every answer above is wrong!
I have one, love it and paid $18 for it! It is exactly the same for me as the Reaction Rip. I use them in tandem.
Reaction Rip is pin out = 4inches. Drilled with cg down and pin up I use this ball until the strange house I bowl in, which has backends which scream in the third game. I then switch to the Bullet which is pin out = 1 1/2 inches with the pin below and out from ring. Like the old Mike Tyson, 1, 2! Don't drive in front of me again, sucker!
Check out specs, both have diffs of near .50 and low rg specs of near 2.58.
All the other balls above do not have that!
REgards,
Luckylefty
PS Rotogrip Retro Blue had very similar specs!
PPS Long and strong baby.
PPPS Pioneer from Morich was close!
PPPPS Impact zone was also close(same core different wrapper).