Back up your original 8 way map first and then paste and save this into it (overriding whats already in there):
MapFileFormatVersion=1.0
MapSize=9
MapRow1=NW,NW,NW,N,N,N,NE,NE,NE
MapRow2=NW,NW,NW,N,N,N,NE,NE,NE
MapRow3=NW,NW,C,C,C,C,C,NE,NE
MapRow4=W,W,C,C,C,C,C,E,E
MapRow5=W,W,C,C,C,C,C,E,E
MapRow6=W,W,C,C,C,C,C,E,E
MapRow7=SW,SW,C,C,C,C,C,SE,SE
MapRow8=SW,SW,SW,S,S,S,SE,SE,SE
MapRow9=SW,SW,SW,S,S,S,SE,SE,SE
All I did was increase the dead zone which meant that large or small movements equaled the same thing making moves easier to pull off.