I recently bought a set of new Titleist T150 irons (4–PW). The first thing I did was take them apart and MOI-match the entire set so every club is perfectly matched to my swing.
The very first shot I hit on the course with my 9-iron resulted in my first-ever hole-in-one! 
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To top it all off, I finished the round one under par, which is also a personal first.