Thanks, Austin! I’ve tried the frog at various settings. In fact, if I move the frog too close to the mouth it creates a gap behind the iron and the iron itself will hit the toe side of the mouth. So I guess there’s a sweet spot in between. Still, I think the issue is how the frog sits on the mount, because with the screws removed, it will rock back and forth instead of sit level no matter how it’s positioned.
By contrast, I have a Record no. 4 that needs a fair bit of tlc, but the frog sits pretty snug on the mount.