Metal plate beneath Linothorakes or Spolades

[rocktupac]

Is it not possible that the T&Y was made in a number of different ways?
I think it is completely possible that some had large metal plates in them. Others may have prefered scale or another form of re-enforcing.

Exactly. It is highly likely that this type of armor was constructed based on personal wealth and personal preference. If you could afford metal scales to be attached, in order to clearly add additional protection, then the personal probably would opt for a corselet with metal scales. If corners could be slightly cut by adding crude metal plates under the armor then they probably were added also. I don't think we need to strive for a strict standardization in the ancient world.