Hi Don:

Is really nice the stand you made, I even think you could sell the design to a manufacturer, If I were you, I would register this stand or wherever legal protection you can get.
I know is light weight because I am familiar with the components used to made it. If you can, add the second tear, and just in case, if you deside to make some to sell, please let me know, I would be interested in a 2 tear Kb. stand.