Which K member is better?

Well no it wasn't my loss because I don't need can't afford to build it, and frankly, for what I'm doing, a complete waste of money. So "by the way."

so far as your K member I disagree on the spool mounts. YESSSSSSSSSssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss I'm forced to agree that rubber failure is "technically" failure

But the spool mounts are X100 far less likely to fail in a way that even approaches the breakage of a pillow mount. They remain captured, and at least keep the engine tied down.

So far as the weakness of the K I cannot argue one way or another. If mine breaks, I'll take the spare and do some welding on it. See? easy.

An' no, I ain' usin' solid mounts. And by that I mean "refuse to do so"