Reasons for SH-2 selection:
Much (!) cheaper initial purchase price
Better commonality with S70 and scope for further commonality through S70 upgrade
Potential commonality with AIR 6000 winner (S70! or further Kaman variant offered)
Perceived inability of Lynx to carry Penguin
Distrust of UK Plc after Hawk problems
Inadequate weighting given to in-service, support and operating costs
As far as I understand it.....