I've got a Roto Silver Streak Pearl on the fourth drill pattern. It is currently my "saviour" ball. When everything else is too strong or just wrong I go to this and it works like a charm. So, I have no fear of redrilling balls.
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"To plunder, to slaughter, to steal, these things they misname empire; and where they make a wilderness, they call it peace." (Tacitus)
"If one tells the truth, one is sure sooner or later to be found out. " (Wilde)