Every number in this review is one I measured with my own equipment and instruments. Swing weight on a Briffidi SW1, twist weight on a Briffidi TWA2, static weight on a precision balance scale, serve speed and punch volley speed with a radar gun, spin from a high-speed camera at over 500 frames per second, surface roughness with a stylus roughness tester. It's the same setup for all 598 paddles I've measured.
Havik All Court 15mm: Swing weight 118.56 · Twist weight 6.47 · Spin 2,012 RPM · Static weight 8.23 oz · Serve speed 58.7 MPH · Punch volley speed 37.1 MPH
Havik Pro 15mm: Swing weight 118.82 · Twist weight 6.52 · Spin 1,980 RPM · Static weight 8.28 oz · Serve speed 59 MPH · Punch volley speed 35.4 MPH
If a metric is missing above, that paddle hasn't been through that test yet. Full measurements for each paddle are on its paddle page. My method is written up on the methodology page, and every paddle I've measured is in the paddle data study.
How I test and measure paddles See the full paddle data study