  We explore the dependence of the amplitude of stellar dynamo cycle
variability (as seen in the Mount Wilson Ca II HK timeseries data) on other
stellar parameters. We find that the fractional cycle amplitude A_cyc (i.e. the
ratio of the peak-to-peak variation to the average) decreases somewhat with
mean activity, increases with decreasing effective temperature, but is not
correlated with inverse Rossby number Ro^{-1}. We find that A_cyc increases
with the ratio of cycle and rotational frequencies omega_cyc/Omega along two,
nearly parallel branches.
