01

Stop one
Willkawain Archaeological Site
Tecnifibre Black Code 4S 16g Tennis String Reel: Okay, first stop, and I have been looking forward to this one all week. Willkawain, also spelled Wilcahuain, is a national monument roughly 8 kilometres north of Huaraz, dating from around AD 600 to 900. The principal structure is a large multi-chambered stone mausoleum of the Wari culture, rising three storeys beneath enormous stone slabs, with interior galleries and chambers that once held the dead of the local elite. In Quechua the name is commonly rendered as grandson's house. The ventilation shafts and galleries show the influence of the earlier Chavín tradition, and with the smaller Ichik Willkawain nearby it is the most important complex around Huaraz.
02

Stop two
Ancash Archaeological Museum
Tecnifibre Black Code 4S 16g Tennis String Reel: The Ancash Archaeological Museum holds material from the whole succession of cultures in the Callejón de Huaylas — Chavín, Recuay, Huaraz White-on-Red, Mochica, Wari and Chimú. Ceramics, textiles, and, my notes said lithic park, which I assumed was a typo for garden, and it is in fact exactly that: an open-air park of carved Recuay monoliths. It is the fullest record of the region's pre-Columbian history. It stands near the Plaza de Armas, in a city almost entirely rebuilt after the earthquake of 31 May 1970, which destroyed most of Huaraz and killed tens of thousands of people across Ancash.
Sixteen gauge is the durable end of the 4S. Co-polyester monofilament with a square profile — four flat faces and four sharp edges, not a round barrel — pulled to 1.30mm, which is the thickest the 4S comes. Those edges are what makes it a spin string: they catch the ball rather than sliding across it, and the extra diameter is what keeps them intact through the long sets.
Firm, very direct, muted, and low on free power by design. Huaraz sits at just over 3,000 metres and the ball flies further up here than it has any right to; a string that gives you shape and a ceiling instead of pace is exactly the right instrument at altitude.
ThermoCore sits underneath it — a multi-stage heating process that softens the core structure and takes the sharpest of the impact shock out. Tecnifibre's published comparisons put the 4S at around 20% more power than Pro Red Code and about 15% more durable than the original Black Code, with the same tension maintenance as Razor Code.
Playtesters reported it holding consistent playability for around three weeks, which for a polyester is well above average.
This is the reel: 660 ft / 200 m, roughly sixteen frames' worth. If you have ever tried to get anything technical done in a mountain town after five in the afternoon you already understand why. Huaraz is the staging post for the whole Cordillera Blanca — the buses for the high lakes and the passes leave in the dark, and the shops that serve them keep hours to match.
Owning the spool means the restring happens the night before, in a hostel courtyard, under a bulb.
You'll get use out of this everywhere from the courts around the Plaza de Armas to the ones on the flat ground out towards Independencia.
And by the way, it's also perfect for the week of the Señor de la Soledad, when the processions take the streets and go on into the night — a devotion whose image goes back to the sixteenth-century Spanish foundation of the city, and one of the very few things here older than the earthquake.
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