Skin types are like opinions.It varies from person to person. Yous skin may just not accept against the grain passes. Before going to a new tool expecting instant improvement and then being disapointed try narrowing your variables.Get a routine going. build your lather the same time every time and use a new cartridge every time.Yes I now it will be expensive to do this but your beard may be coarse enuf to be dulling the edges with only one shave.Also try two do 2 passes with the grain then 1 across, omit against the grain pass. This may or may not help. If it doesn't improve then a different tool may be just what the doctor ordered.