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harolds advise is golden ,, slow down and start your blade flat on your face and do small strokes lifting the spine a little at a time till its cutting but not scraping the hair off . no pressure ,...

if the blade is sent to you as shave ready ,don't strop it ,, you need to know what it is before you strop it,, then carefully strop before next shave ,, most strop after to clean up the edge also...