I've found if I cut sitting down it helps to have a lower surface or an adustable chair.
But standing is so much more accurate for me, if a bit more painful. Because I'm only 5'3" a regular height table works just fine for a while. I can't stand much longer than "a while" anyway.
When I used to stand for long periods, I made 'risers' for my foldup table from PVC pipe (the stiff, white, plumbing stuff). They can be cut any length to fit over the legs and I put cane rubbers on the bottoms of the legs to keep them steady.
Jan in VA
View at the ned of the table legs.....
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