Photos are a bit fuzzy, but i do have a DE6c, with a Berg "Shark" iron on it
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The frog behind the frog. I might get a better chip breaker, someday. I am at the end of the bolt with the wheel
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The "Shark" from Berg. Chip breaker was a union, as Union made this plane for Diamond Edge
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Where my frog sits. I might move it forward, maybe by a blond hair, this maybe a bit older than yours.
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with it all in place. On another plane:
Attachment 300483Sargent #414c, right up to the ramp. Both of these planes have BIG ramps. On a "Eclipse" #4 i picked the other day, the "ramp" was more of a speed bump. I rested the front edge of the frog right on the middle of the "bump"
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Seemed to work out, though
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As for "tight mouth" adjust the frog back a bit. Then adjust the chipbreaker back from the edge of the iron a tiny bit. That Eclipse plane, when i picked it up, had a very tight mouth.....bevel up, instead of bevel down.......with the chipbreaker resting ON the bevel, no less.