Back to topic...don't be fooled by endorsements; many of the top players have switched club brands without much change to their sticks. The new company tries to match what the player is used to, even if they don't make something similar. Mickelson and Els are now Callaway guys but they had much of their success from their Titleist gear. Ditto Woods (grew up playing Mizuno IIRC) and Nike.
Despite all of life's bumps and bruises, I'm still committed to making this world better one smile, one laugh at a time, every day!