So I just started making my first knives and I chose a mini cleaver design out of 1089 high carbon steel. I have it all profiled out and went with a full flat grind. My question is how thin should I get the cutting edge before sending it out to heat treat? My thoughts were that I didn't want to get it to close to where I would start sharpening it and have it warp or something while being heat treated. Thanks in advance, John.