I'm not particularly concerned with the working height. It's less of an issue with metalworking since much of the work is done on machines and they dictate the height. Bench vises, if properly installed, bring the work much higher than is the case with the classic woodworking vises so hand work is at a more comfortable height.

What appeals to me about the design is the fact that it provides opportunities to clamp the work without the need for T-slots or tapped holes. I'm sure there are situations where that would be an advantage but it will take a bit of cogitation until I can turn the idea into a useful metalworking tool.

Thanks again for your presentation.