Gateway

CornerStone

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Distance Driver
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The CornerStone is a Gateway control driver rated 9/5/-2/2, an understable mold that turns readily and returns with a moderate, dependable fade.

Gateway developed it as the numbered prototype "Proto 99a" before naming it; the PDGA records the certification as "Cornerstone (renamed from Proto 99a)", approved November 3, 2025 under certification 25-165.

The turn makes it a natural for hyzer flips and long turnover lines at moderate power. Gateway currently offers it in Diamond Metal Flake and NXT-G.

Flight

Source: Gateway

Arm speed

NoviceIntermediatePro
Speed
9
Glide
5
Turn
-2
Fade
2
StabilityTurn + Fade
0

Dimensions

Source: PDGA
Diameter
21.2 cm
Height
1.8 cm
Rim Depth
1.1 cm
Rim Thickness
2 cm
Rim Inside Diameter
17.2 cm
Rim Depth/Diameter Ratio
5.2%
Rim Configuration
27.5
Bead
No

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