Hi folks,

I have found grog with two different granularities - 0/3mm and 4/8mm

Given that I am going for a dome of around 8cm(3") thickness, which would be more suitable. Someone kindly suggested that I should shoot for an eighth of the total thickness which would point to the 4/8mm grade but is there a disadvantage or problem with going for finer than is required?

I have found grog with two different granularities - 0/3mm and 4/8mm

Given that I am going for a dome of around 8cm(3") thickness, which would be more suitable. Someone kindly suggested that I should shoot for an eighth of the total thickness which would point to the 4/8mm grade but is there a disadvantage or problem with going for finer than is required?

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