Signalling interest 1 Feb 24, 2014 13:09:47 GMT Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by hellocontrol on Feb 24, 2014 13:09:47 GMT I saw on another forum although it's now been deleted for some reason but here goes as I made a note of them.Harrow on the Hill key protection switches I was not aware of these anyone know any more.