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Proton Series Four 15mm vs Selkirk Labs 008 Invikta 13mm
Side-by-side comparison with lab-tested specs
Specs Comparison
Spec
Proton Series Four 15mm
Selkirk Labs 008 Invikta 13mm
Price
$300
$288
Swing Weight
116
116
Twist Weight
5.61
5.5
Weight
8 oz
7.9 oz
Core
—
13mm
Power
57.7 MPH
57.1 MPH
Pop
36.2 MPH
37.1 MPH
Spin
2114 RPM
2109 RPM
Shape
—
Elongated
Face
Composite
Carbon
Build
—
Gen 4
Balance
241mm
233mm
Proton Series Four 15mm
This paddle delivers 84th percentile power (57.7 MPH), spin-friendly low twist weight — a versatile option.
Pros
- +Above-average power at 57.7 MPH (84th percentile, avg 56.4)
- +Good spin generation at 2114 RPM (74th percentile)
Cons
- −Low stability — twist weight of 5.61 (11th percentile) means off-center hits will twist more in your hand
- −Premium price at $300 — more expensive than 98% of paddles (avg $197)
Best For
Power PlayersTennis Converts
Selkirk Labs 008 Invikta 13mm
This paddle delivers mid-range 57.1 MPH power, crisp 13mm feel, spin-friendly low twist weight — a control option in a elongated shape.
Pros
- +Above-average power at 57.1 MPH (74th percentile, avg 56.4)
- +Solid pop at 37.1 MPH (84th percentile) for net exchanges
- +Good spin generation at 2109 RPM (72th percentile)
- +Elongated shape gives extra reach on defense, overheads, and two-handed backhands
- +Thin core (13mm) gives a crisp, responsive feel with fast feedback
Cons
- −Low stability — twist weight of 5.5 (bottom 8%) means off-center hits will twist more in your hand
- −Narrower face means a smaller horizontal sweet spot
- −Very thin core can feel harsh on mishits and may cause arm fatigue
- −Premium price at $288 — more expensive than 96% of paddles (avg $197)
Best For
Tennis Converts
Code: INF-BRAYDONU
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