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http://straightrazorpalace.com/workshop/18504-welcome-workshop-how-do-i-where-do-i-what-do-i-answers-here.html

Agree entirely. OP - take a look at the 'how to' section at the top of the workshop thread page and look for advice on hand sanding tools - it will be easier than using just fingers and abrasive...

The important thing to remember - it is not the pits you are removing - it's all the material surrounding them. Low grit paper will work - it's a question of whether you hand and fingers will give up...