This is my "Muscular M3".

The darker texture is the default M3 DAZ tex which is very "sanitized" and has no highlights at all.

The lighter texture is a modification of the old DAZ 2nd Gen PreTeen Vicky (!) tex and has "some" burned in specularity.

Shaders are identical on both figures and there is no displacement map, just EZSkin.

Personally, the M3 texture just looks too bland to me, and I wouldn't use it in my renders "as is", i.e. without a high end displacement map that could restore the information that was lost by editing out the highlights.