When ever I need to do something very slight in the coner of the neck pocket I just scrap or cut it down with a xacto knife. I have an Xacto craft set that I bought for like 60.00 that has gouges ,blade and knives it even has a small block sander..

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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson

Yeah, I do that too. Or get in there with the tip of a small chisel, or a scraper.

But sometimes there is just a bit of lacquer that you want to smooth ever so slightly. I find a blade sometimes cracks it, especially that little curved buildup you get in the corner where the floor joins the side of the pocket, which might be enough to stop the heel getting a really snug fit. Sometimes the tip of a blade breaks it up and causes more harm than good.

I used to find myself prodding away at it with folded bits of sandpaper, or wrapping the paper round a little stick or something. Really tricky right in the corner.

Then I cut the bristles off an electric toothbrush head, stuck a pad of neoprene on instead and then you can mount a grade of sandpaper of your choice on there with a tiny bit of double sided tape. It's kinda slow work, but it can give a good result with patience. A tiny orbital sander.

'Specially in this situation, if Mr Hadlee decides to go the filler route: he's gonna want to make as smooth a floor to his pocket as he can - or he might as well not have bothered.

I often find I want the Dremel to go at about a tenth of it's slowest speed - do you know what I mean?

Cheers - C