So from that @rookhawk I take it you found that for a right handed person the prefered placing for the sheath is in front of the left hip at about a 30* angle for a knife like the Esee camp lore.
I hadnt been considering a camp chair when I opined on the sheath position and had been going more on my experience of vehicle seats so I can readily see (and can sympathise with) your reasoning
@Von Gruff I was thinking for a right hand person, left hip or further forward, cross draw for a right hand person, but not at 30 degrees, at completely horizontal.
Many sheaths exist that hold such knives securely and are opened with one snap that releases the leather wrapped around handle behind guard that allows for instantaneous removal of the knife. Bushcraftstore UK sells such sheaths for example. JRE industries also makes them.