Well if you've followed these steps the trigger height should be largely correct. It may still be necessary to use a slight amount of baby stepping to get it perfect, but 0.48mm is quite a lot on a first layer.
I'd redo the probe calibration making sure to keep the following in mind
Get the X Y offset as close as possible Measure the Z trigger height with the bed and nozzle at printing temp to account for thermal expansion and warp. Make sure that the point you're testing the probe trigger height with G30 S-1 is the same point you're setting G92 Z0 as with the nozzle touching the bed. Make sure the extruder e steps is calibrated and your material flow rate in the slicer dialed in with accurately measured filament diameter.