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That is a tough one. Can't control where the blade sits using the usual method of wedge thickness.
Some protrusions from the top of scales have been done to stop the blade.
I haven't seen it done...

Steve, that is indeed interesting about the blade resting upon the wedge. It makes sense to me, though I'd prefer to make the scales a large enough size or use the third pin.
Most of the razors...

I've seen this on a number of blades. Sometimes the forward part of the wedge has been filed intentionally but some look like the blade did the filing. and sometimes also the outside edges have...