It is several years since I last tackled Mephisto, and the overall quality had already dropped significantly by that time, but in the days of Tim Moorey, Chris Feetenby and the magnificent Mike Laws, it was a puzzle to be reckoned with.
I thank Mr Moorey for providing considerable entertainment (as well as prompting a few harumphs), and will remember in particular Mephisto 2468, wherein he included the answers HOODOO, OUI and APPRECIATE.