Layout: 5 1/2 x 6 x 1 1/2 (Mo Pinel's no-thumb method). I'm usually not a huge fan of urethane, but it's good to have at least one in your arsenal. Since the Iron Diamond is a 2-piece ball & has my favorite core, the Dynasty, I decided to order one. I'm glad I did! The Iron Diamond is very smooth with a readable arcing hook. So far, it has been an excellent investment on the PBA 33' Cheetah pattern & a couple nights when a nearby house's THS ended up very spotty. If you're on the fence on trying a urethane for shorter or light patterns, I highly recommend the Iron Diamond!
Area Staff Member,
Lane Masters/Legends/Lord Field/SWAG