Chinese tradition against European and Japanese

The previous sections have presented boosting as a technical phenomenon: what it does, how it arose, what the rules say. But there is a dimension that physics and regulations alone do not explain. Attitudes to treating rubbers vary radically according to playing tradition, and that difference is not incidental: it conditions the design of the equipment, the way players train and the way legality is perceived.

In the Chinese tradition, a boost is not an optional extra but one more stage of assembly. The chain of preparing a bat runs through selecting the blade, choosing the rubber, applying the treatment and mounting the assembly; leaving out the third step would be like assembling an engine without oil. Rubbers with a tacky topsheet — the Hurricane family and its variants, described in 5.3 — are made with sponges whose nominal hardness far exceeds what most European players would consider playable. An untreated Hurricane 3 National with a 40-degree sponge on the DHS scale offers a response so stiff that only a very powerful stroke reaches its working range. A boost lowers that effective hardness by several degrees — as explained in 14.3 — and places the rubber in the range its design presupposes. Chinese provincial and national squads treat their rubbers as a matter of routine, with products and methods passed down within the federation structure as part of standard technical knowledge.

That normality has an industrial consequence. DHS and other Chinese manufacturers design their rubbers on the assumption that they will be treated. Factory hardness is not a final figure but a starting point the treatment adjusts to the player's profile. It is an internally coherent system: the rubber, the stiff blade — the profile described in 12.4 — and the boost form a tripod where each leg needs the other two. Removing the treatment does not simplify the system; it unbalances it.

The European and Japanese tradition operates on the opposite logic. After the ban on speed glue in 2008, industry poured its development into tensor rubbers — covered in 5.2 — which arrive from the factory with internal elasticity sufficient to compete without later intervention. Tenergy, Dignics, Rasanter and DNA build in as standard the response that previously came only from speed glue. For a player formed in this tradition, a rubber is a finished product: it comes out of the packet, goes onto the blade and is ready. Boosting is no part of the usual flow, and when it appears it is met with a mixture of distrust and competitive suspicion.

That divergence explains much of the tension surrounding the subject on forums, in clubs and at international competitions. A European player who sees an opponent with a boosted Hurricane tends to read the practice as cheating. A Chinese player who hears that accusation receives it with puzzlement, because for them there is no functional difference between applying a boost to their own rubber and applying factory tension to the opponent's: both are treatments that optimise the equipment, one in the factory and one on the workbench. Neither position is absurd; each reflects the premises of its tradition.

The rules, as seen in 14.4, draw no distinction between the two logics. They prohibit any treatment after manufacture, which in the letter puts a manual boost on the level of an irregularity. But factory tensioning — which alters the sponge by chemical means during production — is perfectly legal because it happens before the product reaches the market. The line between the permitted and the prohibited does not separate “treated rubber” from “untreated rubber”; it separates “treated in the factory” from “treated outside it”. That distinction has a regulatory logic, but it has no physical one: the result on the sponge, in both cases, is a cell structure more elastic than the base rubber would offer on its own.

The practical consequence is that two players can come to the table with functionally equivalent rubbers — one factory-tensioned, the other manually boosted — and only one of them breaches the rules. That asymmetry fuels the debate and makes it hard to settle. The point here is not to take sides — the book's position is set out in 14.8 — but to understand that the cultural difference is neither a whim nor an accident: it comes from two different industrial routes to solving the same problem, and the current rules recognise only one of them as legitimate.