[r-t] Fifield Doubles

[Alan C. Foster]

I'm trying (and struggling) to get a true 120 of Fifield Doubles
(5.1.125.3 hl5 le123).  I downloaded the method into Abel from the
microSIRIL library, and that gives a 145 bob, 123 single, 125 extreme
and a 1 omit.  I think the single is wrong, as that's the plain lead
end.  Anyone care to point me in the right direction?  

I had a quick look at Tony Smith's page on the Method Committees website
(<http://www.methods.org.uk/other/douvar.htm>), but as I don't know
Fifield's method number or group, it didn't help (though I think I get
the gist of it).  


TIA.  

Alan.  

Alan Foster
St Andrew's, East Hagbourne,
Oxon.