  We present a comprehensive study of finite volume and lattice spacing effects
on observables calculated in the static approximation. Ground state projection
using smearing techniques is studied at $\beta=6.26$. We give high statics
results for the pseudoscalar decay constant after extrapolating to the chiral
and continuum limit. In addition results for mass splittings and the distance
of string breaking in the $Q\bar{Q}$ potential are presented.
