I use rolling x quite regular even on regular blades i still find vert tip or very heal does'nt quite get there i always use black marker even watch the wave in front of blade but the marker tells all. I just lead with heal down first and gradualy rotate toward the toe at the end of x stroke always keeping spine flat in line with edge that is on the hone my stroke is pritty swift one to to keep things even if i go to slow i find it more unsteady little quiker better for me but it works every part of the edge.