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Measurement of 12 pcs Mizumo JPX 5-piece construction

Mizumo JPX is a 5-piece ball high Price range.
Price seen in Internet is about USD 60 fro 12 balls.

Summary:

Diameter:
- 0 out of 12 good for non professional tournament
- 8 out of 12 acceptabel for hobby golfer
- 4 out of 12 too big

Roundness:
- 0 out of 12 good
- 11 out of 12 medium quality
- 1 out of 12 unqualified

The Diameter of the Mizumo JPX is quite bigger than the Diameter of other brands in a similar price range. This seems to be result of 5 layer construction where the tolerances of each layer are added. The roundness shows a quite steady condition due to a high manufacturing quality level.

We recommend this model to be used in tournament after each ball has been checked with GMBD. All in all the balls measured are at high quality level. 1 balls out of 12 (ball no. 5)should be used for driving range only (red color marked in the diagram sheet).

The numbers at row T1 in the diagram are the quarter turns (shifts) on adjustment srew until the golf ball was movable into one direction at least (measurement of diameter). Next Row Displays the corresponding Diameter of the golf ball according to the diagram. Row T2 Displays the number of "shifts" made until the golf ball could be moved into all directions easily (measurement of roundness).