Is Preservation engineered stabilization where any thing goes as long as you keep the original fabric as is. Modern floor joist with hangers along side weakened, dilapidated floor joist.

While you may restore a barn you disassembled and replace whole pieces with new stock using similar technology to remake the offending pieces.

I think that is similar to what Ken said, so I would agree.

I can see cases where you would want to do one or the other or a bit of both.

Tim