Here’s the Harrow Custom Spark squash racket that both Adrian Grant and Latasha Khan were playing with at the 2012 Hong Kong squash open.
So I gather under the direction of Jonathon Power, they took the Harrow Vapor and shaved off a few grams of weight to create the Spark. They say it’s 135 grams and that’s including the weight of the strings so yeah it’s pretty light. (It’s 120 grams unstrung.)
If you buy this racket, what happens is Jonathon Power gets an alert. He immediately goes downstairs to his squash lair, and takes a brand new Vapor out of the wrapper. He slowly, methodically whittles off parts of the racquet until it is the perfect weight and he cannot remove a single ounce more. Then, in one fluid motion, he hand-paints his signature onto the frame. He then places the racket onto a special pillow made of old bandanas used during competition play. He lights a candle, and then sprinkles onto the racket some rubber that he has previously shaved off a squash ball using a microplane. And then, he ships the racket to you.
Here’s Adrian Grant with his Custom Spark: