I must be misunderstanding a basic concept here.
What conditions would have to exist to cause a Fairshare value greater than 0.5?
[bloscel@maruhpc5 ~]$ sshare -a
Account User Raw Shares Norm Shares Raw Usage Effectv
Usage FairShare
-------------------- ---------- ---------- ----------- -----------
------------- ----------
root 1.000000 11376527
1.000000 0.500000
root root 0 0.000000 0
0.000000 0.000000
cfd 1 1.000000 11376527
1.000000 0.500000
cfd bendeee 1000 0.076923 0
0.076923 0.500000
cfd bloscel 1000 0.076923 712296
0.134718 0.297027
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