Barking and Dagenham seem to be trialling MH now in the form of Urbis' new Evolo lantern, which I love as it looks great on anything, including these 1970s Fabrikat columns. These examples were installed in late 2009 to replace SGS203s and Iridiums, which in turn replaced GEC Z9554s in about 2001/2002 and were only about 7-8 years old at the time of replacement. I've also seen the Evolo begin to be used in post-top form in Redbridge - a few have been installed before a traffic light junction on New Wanstead in Snaresbrook, replacing various SOX lanterns, including a few Alpha 4s, an MA50 casual replacement and a single GR150.