Having trouble setting up bulldog clip offset for homeall

3dprinting meathead

so, I got a new piece of glass, and tried to set up an offset for the clips, and now my home z doesn't offset at all. I'm sure I messed up something, but not sure what.

Here's

; bed.g
; called to perform automatic bed compensation via G29
;
; generated by RepRapFirmware Configuration Tool on Sat Feb 18 2017 23:41:13 GMT-0500 (Eastern Standard Time)

; Clear any bed transform
M561

; Home all axes
G28

; mesh bed leveling
M557 X40:155 Y0:195 S80

and here's

; Configuration file for Duet WiFi (firmware version 1.17)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Sat Feb 18 2017 23:41:13 GMT-0500 (Eastern Standard Time)

; General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates…
M83 ; ...but relative extruder moves
M555 P2 ; Set firmware compatibility to look like Marlin
M208 X40 Y0 Z0 S1 ; Set axis minima
M208 X155 Y200 Z260 S0 ; Set axis maxima

and here's

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool on Sat Feb 18 2017 23:41:13 GMT-0500 (Eastern Standard Time)

; Lift Z relatively to current position
G91
G1 Z5 F8000

; Back to absolute positioning
G90

; Go to first bed probe point and home the Z axis
G1 X40 Y0 F8000
M280 P3 S10 I1
G30
M280 P3 S90 I1

; Uncomment the following lines to lift Z after probing
G91
G1 Z5 F100
G90

any input is appreciated

3dprinting meathead

ok, I think I got it figured out

Old
M208 X40 Y0 Z0 S1 ; Set axis minima

New
M208 X-40 Y0 Z0 S1 ; Set axis minima