The grey blade was only ever really good for 1 pass 2 if your timings were bang on.
Get the timing wrong and it ripped the skim up like a ploughed field.
First time I used it I fooked the timings up badly and nearly threw it in the skip.
Fast toward to the new blue blade I don't understand the science
@Speedskim Scott maybe able to explain hower.
1 skim laid in.
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2. First flatten with the speedskim
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3 2nd pass with the speedskim.
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4. 3rd pass with the speedskim.
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5 a quick pass with s*p*r*lex/plazzy.
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