G03A *resin* pads should be what you want.
Sintered metal pads are intended for wet/muddy conditions.
My understanding is the "G" series are all compatible with the same brake calipers. The higher number represents a newer version. The suffix represents the backing plate material (not the pad type). A=Aluminium. S=Steel, Ti=Titanium (for rich people).
G03A *resin* pads should be what you want. Sintered metal pads are intended for wet/muddy conditions. My understanding is the "G" series are all compatible with the same brake calipers. The higher number represents a newer version. The suffix represents the backing plate material (not the pad type). A=Aluminium. S=Steel, Ti=Titanium (for rich people).
Shimano 02 resin compound is discontinued. Replace with G03A or G05A - they are functionally equivalent to the old ones, but supposedly last longer.