Hello @BroncoAce !
You have to adjust the bed mesh limits according to the bed size and the BLtouch offset.
[bltouch]
sensor_pin = ^PB1
control_pin = PB0
x_offset = 35.5
y_offset = 1
z_offset = 5
speed = 20
samples = 1
sample_retract_dist = 8.0
stow_on_each_sample = false
The BLtouch is 35.5 mm right to the nozzle.
[bed_mesh]
speed = 190
mesh_min = 10,20
mesh_max = 200.2,191.5
probe_count = 6,6
fade_start = 1
fade_end = 10
fade_target = 0
algorithm = bicubic
To make the BLtouch reach X = 10, the nozzle has to go 10 - 35.5 = - 25.5