Albert,
3) My reading (still reading it and absorbing it too) is that if you leave at 50 (eg) then although you get '75 benefits straightaway, you would have to wait until 66/67/68 for the full FAFPS income. Unless you have also ticked the 20/40 (which you will have I assume!) box for FAFPS in which case you'd also get FAFPS tax free cash/EDP when you leave at 50 (and more commutable FAFPS income at 66/67/68).