This particular office chum won't be taking any industrial action likely to preserve the pensions of operational staff at the expense of my job. The amount I might lose in pension by the RPI cap pales into insignificance compared to the amount lost if I'm not a member of the scheme until retirement.
Apart from this paragraph it is an extremely good post and addresses many concerns.
But if you are a member of any of the 3 unions please abide by the democratic decision no matter how unpalatable it may be.