That's very interesting Blue. , but I thought you suffered with your back and knees ? .
I think my knees would protest the next day if I sat on a Lo Chair other than for a short period of time , and the same for sitting on a mat or the grass ; I am better off sitting on my JRC Xlite Chair at 3kg
some of us suffer with ailments such has bad joints or back so its not easy to compromise comfort for lighter weights
I need a large bedchair which wont fit into smaller shelters so I just try and keep the justins to a minimum