Looks like Karanacs has beaten me to it I dont entirely restrict myself to topics I knowI seem to have done an awful lot of rats latelybut I do generally try to restrict myself to areas I know mainly civil engineering music and transport In general I find that reviewing articles in fields I dont know is tricky as so many areas have their own particular conventions If you ever want me to look at one in future feel free to poke me hereI wont consider it canvassing given that Ive requested it