The choice of boule.
We have so far looked at Diameter, Weight, and Pattern. Today we are looking at hardness of boule you require.
Hardness 2 types of boule.
In the past manufactures produced many types of hardness from Hard to Very soft. Now the choice has moved to two levels of hardness.
Soft : Between 110 and 112kg/mm The annealed boule give a greater absorption of impact when shooting, giving the boule a tendency to carreau more often when hitting boule. This is the reason shooters prefer soft boule but they do wear quickly. They can also be useful when pointing on hard pistes as they absorb the landing of the boule on high lobs.
Semi Soft : 115 kg/mm The hardness of the metal prevents wear on the boule, however, the boule is left in a semi soft state to help absorb the impact of a shot and thus remain in the head. Pointers like these boule as well because they can last longer than soft boule as they resist the wear when pointing with a lot of backspin. This is also why middle players in triples prefer semi soft boule.
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