I thought this was a bug but I'm not sure anymore. Seems like my amulesig.dat is being updated faster than the setting I specified in amule.conf
OnlineSignatureUpdate=20
I tried chagning both amule.conf and remote.conf (also I'm actually using amuled) and wxcas, cas, xcas, running 'cat .aMule/onlinesig.dat' repeatdly, they all still gets different data in realtime. Is this normal?