We discuss the application of hybrid over-relaxation, even-odd
preconditioning and a modified local updating procedure to the local bosonic
fermion algorithm. Studies on autocorrelation times and the tuning of the
parameters of the algorithm are done on various lattice sizes simulating
SU(2)-LGT with 2 flavours of Wilson quarks. A substantial decrease of the
computational cost could be achieved.Comment: 20 pages, uuencoded compressed postscrip