As a new knife maker I have lots to learn. I have started on my fourth knife and one thing I have noticed is that I have a really hard time keeping a straight grind line when I am grinding from right to left. If I grind from left to right I can keep a pretty neat grind line that is easily cleaned up as I change to higher grit belts. When grinding right to left my grinds can be all over the place. It seems with every other pass my lines change, the geometry changes, etc... I have yet to use a jig as I really don’t want to depend on one. I’ve tried setting the piece on my tool rest and sliding it across the belt so my grind line stays straight but then my geometry gets messed up with each pass or if I totally freehand it, my geometry stays consistent but my grind line is really wavy. Any suggestions on what I can do to be more consistent no matter the direction I’m grinding?