Compare
Dunlop SX 300 (2025) vs Penn Championship Extra Duty
Axes first, then the short verdict. The overall Court Score is not an average.
Listing
Court Score
3
3
Powerfree depth
4
3
Controlaim when swinging out
3
2
Spinshape / dip
5
3
Comfortarm-friendly sessions
2
3
Valueworth street price
4
5
Verdict
Dunlop’s teal/yellow spin 100—TW topspin 9.1, $250 street, the empty-brand Aero/VCORE alt Court List was missing—not the first spin demo for most, but a real primary if you want shape cheaper and a touch more directed than yellow Aero.
America's default can, the official ball of USTA Leagues for about $3.50 a can by the case, but it's priced for volume and plays like it, with reviewers saying it fluffs and goes flat in a set or two.