I can't help but chuckle when people object to welded tangs. When two pieces of metal are joined by a weld, the joint is stronger than either piece is on its own. And, if a strong handle material (like Micarta, for example, or even wood) is fitted snugly to the tang, or at least epoxied in place, it's a package that is nearly as strong as a Becker-style full tang. Stacked leather may be a little less structurally solid than something hard like Micarta or wood, since it can compress, but even that compression is on a microscopic level, and there is something to be said for the vibration damping effect that stacked leather offers; it more than makes up for any "loss" of rigidity.