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A technician working on a tennis racquet at a stringing machine
Strings & tension

4G Soft is softer than 4G. Where does 217.2 sit among 1.25 mm strings?

A dated TWU comparison puts 4G Soft below 4G in dynamic stiffness but above Element and Velocity MLT. Read the reference tension, units and material before choosing.

7 min read
A racquet and tennis ball on court
Racquets & gear

Blade 100 V10 vs 100 Pro V10: who should try the longer frame?

Start with the 27-inch Blade 100 V10 for familiar timing, or compare the 27.25-inch Pro for added reach. Manufacturer specifications and attributed playtests help set the demo priorities.

8 min read
A technician working on a tennis racquet
Strings & tension

White clamp marks or real slipping? Check three holding points before raising tension

A practical guide to string jaws, clamp bases and puller grips, using GAMMA maintenance guidance and the Baiardo L manual.

7 min read
A tennis stringer at a workbench
Racquets & gear

Strings breaking near the frame? Inspect the grommets before changing the setup

A practical guide to worn barrels, exposed frame edges and replacement-part identity, with manufacturer examples and a clear work order for your stringer.

7 min read
Several types of tennis overgrip
Racquets & gear

Handle counterweights can restore balance while swingweight stays higher

A hypothetical 300 g racquet returns close to its original balance after 5 g at each end, yet its swingweight rises from 320 to 337.32 kg·cm². Here is why.

7 min read
A technician working at a tennis stringing machine
Strings & tension

MSV Swift vs Multi Q10: choose the material before the 5% pre-stretch

Swift is a co-polyester monofilament; Multi Q10 is a nylon multifilament. Compare the intended construction first, then follow the product-specific pre-stretch guidance.

8 min read
A technician working at a tennis stringing machine
Strings & tension

Two knots or four? Read the model’s route before judging the string job

RF 01, Blade 98 and Blade 100 show why one-piece and two-piece stringing need model-specific instructions. Read cross starts, tie-offs and a clear work order.

8 min read
A technician weaving strings through a racquet on a stringing machine
Racquets & gear

Blade 98S V10: eighteen mains, only sixteen crosses

Wilson’s 18×16 Blade 98S differs from the 18×20 Blade in cross count, frame mass and balance. Here is what those differences change when choosing a stringbed.

7 min read
Ernests Gulbis following through on serve at the Pacific Life Open
Racquets & gear

An extra quarter inch or half inch? Blade 100 Pro and Pure Drive+ ask different questions

Compare the 27.25-inch Blade 100 Pro V10 with the 27.5-inch Pure Drive+ Gen11. Length, pattern and beam change together, so make the serve and the following return part of the decision.

7 min read
Tennis racquets at a stringing station
Strings & tension

Focus HEX and Co Focus: match 1.23 mm before comparing the profiles

MSV describes Co Focus as using the same material as Focus HEX with a round profile. Their shared diameters offer a practical starting point for a controlled comparison.

7 min read
Electron micrograph of a sectioned tennis string
Strings & tension

REXIS SPEED puts a monofilament component inside a multifilament string

Yonex’s launch description explains the nylon–polyester centre; current SPEED, COMFORT and FEEL listings show why construction, ingredients and intended feel need separate columns.

7 min read
A technician installing strings in a racquet on a Prince machine
Racquets & gear

Ripcord or Ripstick 100: one extra cross, different ports and a more connected feel?

The 2025 Prince Ripcord 100 300g uses 16×19 and conventional grommets; Ripstick uses 16×18 and O-Ports. Compare verified specifications with the reviewers’ specific observations.

7 min read