Some believe that you can still fly this approach in a helicopter in the "traditional" manner, treating the DA as an MDA. Others say that you must fly it as published on the chart. There is debate as to whether there should be a helicopter type allowance to add on before it is acceptable to fly it as a DA.
Just one small fact that I don't think anyone has mentioned yet, NPCP, in UK CDFA was made mandatory for FW in 2011, but not for RW, who are still free to fly non-CDFA. If I were at work, I'd get you the number of the Safety Notice, but I'm on hols soon for a couple of weeks. CAA website, search on S/Ns 2011.