Picked this up NIB from Laybzz74 after he offered it for sale on Ballreviews.com. I had this ball drilled up to hook and hook a lot. Pin is left of the ring finger about an inch and CG directly below. Threw it tonight for the first time. Conditions were heavy oil (my teammate's No Mercy wasn't turning very strong at all even though he just had it resurfaced to 1000).
I threw The Guaranteed across the 15 board at the arrows to a break point at about the 5 board and this ball is an absolute monster! It carried through the heads with ease, was surprised by how well it traveled through the mids, and then it turned with a hard, smooth arc, and crashed into the pocket absolutely destroying the rack. This is easily the most aggressive, hardest hitting ball I have ever thrown.
I'm aware that "hits like a _______" is very over used here, but The Guaranteed hits like an overloaded freight train without brakes smashing through a china shop. The pins flew like I have never seen...this ball hits so hard that it also carried on both light and high pocket hits. First time I ever had a ball pay for itself on the first night out, but did I swept the pots in the first and second games. I put it away for the third game as the oil on the lanes started breaking down. I'm now a Lanemasters Slave! This ball easily gets a 10 out of 10 in my book. I love this ball!
11/10 update - Contrary to popular belief, a Lanemaster ball can lose some of its zing. This ball no longer makes it back to the pocket when I throw across the lane on heavy oil. The Guaranteed is still a good heavy oil ball, but I've had to shift signifcantly left and throw more of a down and in shot. If I try to throw this ball across the lane on less than heavy oil, it burns out before it hits the pocket and ends up hitting fairly weak. So this is now a fairly one dimensional ball...but I've owned several balls that I had drilled up for a down-and-in shot on heavy oil and the Guaranteed works better than any of those balls ever did on this type of shot.
See vid:
http://media.putfile.com/Lanemasters-Guaranteed