"within" a tressure (and bordure?) should be valid

[karlwilcox]

And should we ensure that the charge doesn't overlap the ordinary here?

e.g. quarterly first Gules three lions passant gardant in pale Or armed and langued Azure second Or a lion rampant within a double tressure flory-counter-flory Gules third quarter azure a harp or fourth quarter vert a dragon gules impaled with ermine;;; over the quarters a lozenge escutcheon azure three fleur-de-lys or