Through pro-shop at my local center, just purchased my first Lane #1 ball. I usually roll Lanemasters, however, typically using 14 lb. equipment, I wanted to go back up to 15lbs. He had a great deal on NIB 15lb. G-Force Evolution. I had it drilled stacked, all I can say is WOW!, I like it ALOT! Rolls so smooth with powerful backend!