Yes I am now very familiar with the Gann fans in Metastock which sounds like the same indicator you talk about ,
I have learnt to use it on all charts before trading and It does turn out to be a valid tool and will often give you an indication for a reaction point,
Astrology is mentioned often as one of Ganns major tools in trading and has me interested as to its validity as a tool in trading ,
I think Gann used Astro as he found it worked on commodities and stocks related to them which he traded often ,
Astrology looks very complex to study and I am not keen to go down what could be another dead end path,