@gloomyandy I owe you for that one, many thanks indeed. It is homing on this, will revert at end of homing to spreadcycle. Thanks again
; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.5.0-rc.2+3 on Mon Jan 15 2024 12:53:37 GMT+0000 (Greenwich Mean Time)
M569 P0 D3 V0
M915 H200 X Y S3 R0 F0 ; set sensorless homing
; lift Z
G91 ; relative positioning
G1 H2 Z5 ; move Z relative to current position to avoid dragging nozzle over the bed
G90 ; absolute positioning
; home X
G1 H1 X-300 F3000 ; coarse home in the -X direction
G1 H2 X20 F1500 ; move back 5mm
;G1 H1 X{-var.maxTravel} F300 ; fine home in the -X direction
;G1 H2 Z-5 F6000 ; lower Z again