Probe and tool offset confusion

[krzaku]

I'm having troubles setting up the tool and probe offsets in my firmware. My tool is offset by X: 24 Y: -45 and my probe is offset by X: 50 Y: -37 (not to the tool itself but to the same point as the tool offset). So I've used these two lines to set my offsets in the config:

G31 P600 X50 Y-37 Z0.7
G10 P0 X24 Y-45 Z0

But the firmware allows the print head to move beyond the limits defined by M208 and into the axes. Also the M557 command is not functioning as expected and uses one of these offsets (not sure which one) instead of raw coordinates. What am I doing wrong?