Let (M, ω, J) be a compact and connected polarized Hodge manifold, S an isodrastic leaf of half-weighted Bohr-Sommerfeld Lagrangian submanifolds. We study the relation between the Weinstein symplectic structure of S and the asymptotics of the the pull-back of the Fubini-Study form under the projectivization of the so-called BPU maps on S.