  On a smooth projective threefold, we show that there are only two isomorphism
types for the moduli of stable objects with respect to Bayer's standard
polynomial Bridgeland stability - the moduli of Gieseker-stable sheaves and the
moduli of PT-stable objects - under the following assumptions: no two of the
stability vectors are collinear, and the degree and rank of the objects are
relatively prime. We also describe a close relation between the intersection of
the moduli spaces of PT-stable and dual-PT-stable objects, and the moduli of
reflexive sheaves.
