Thanks all for the recommendations on purchasing a new light meter. The Sekonic L-308 was the option I chose:
Small, fast and very accurate (0.1, 0.3 and 0.5
f-stop options), I am very pleased with it. While my Gossen Digisix was convenient, it lacked metering versatility and probably suffered from some accuracy or at least sensing issues (small sensor). Off into the wilderness yesterday the new Sekonic even coped well with raining volcanic ash (well better than me coughing everywhere that is):
Erupting Asama-yama courtesy of Miss Ako. 
Sekonic Worshipping in Action courtesy of Juergen the German.With little latitude in my Type-665, less so as it is well expired, there was less pushing and pulling post camera than I would usually expect. I might have just been lucky though:
Usui Railway Bridge - Built 1892 and closed in 1965 when the
shinkansen line to Nagano opened.
Some title needed on this one.
A Prince that has seen better days.
A hunter who spent the afternoon chasing his mischievous dog.
With ash from the volcano falling all around we stopped for gas and a quick drink.
