Face AngleP21 has a slightly open face angle, P89 / Eberle / W04 / Vanek has a open face angle. A more open face lifts shots more easily; a more closed face keeps the puck lower.
Curve DepthP89 / Eberle / W04 / Vanek has a deeper curve (Moderate) versus the slight P21. Deeper curves add puck control and shooting power but reduce backhand feel.
LieP21 has a lie of null, P89 / Eberle / W04 / Vanek has a lie of 5. P21 has a higher lie, which suits players who carry the puck close to their body.
Curve TypeP21 is a Mid curve (balanced and all-purpose). P89 / Eberle / W04 / Vanek is a Heel curve (heel-weighted, better for slapshots and backhand passes).
Curve names don't match across brands, and the wrong one changes how the puck feels on your blade. Translate your curve to its exact equivalent on every brand in seconds.