Weighting and geometry built into a club to help the ball turn right-to-left for a right-hander: extra mass toward the heel so the toe releases faster, offset that buys the face a few extra milliseconds to rotate closed, sometimes a face angle that simply sits a degree closed at address. The distinction fitters wish everyone knew: draw bias is directional bias, not forgiveness. Forgiveness is MOI — mishit insurance that makes your bad strikes behave more like your good ones. Draw bias moves where your good shots go. That makes it real medicine for a chronic slicer and actively harmful for anyone who fights a hook or a pull — a head engineered to close faster, in the hands of a player whose face already closes too fast, makes the left miss worse. Buy it for your miss, not your handicap.
Source: https://www.golfworks.com/how-moment-of-inertia-moi-affects-driver-playability/, https://golfwrx.com/251459/use-the-new-ball-flight-laws-to-understand-your-tendencies/ · high confidence