We study B-s and D-s spectroscopy in quenched lattice QCD using the Fe
rmilab approach to heavy quarks. We obtain results at four lattice spa
cings, a, using O(a)-improved Wilson quarks. We compare and contrast t
he various methods for heavy quarks on the lattice, discussing discuss
ing which methods work best for different physical systems and the eas
e with which calculations may be performed.