Hi,
I would estimate the effort to cock my Turkish Tempest as about the same as my Mk1s but quite a bit more than a Senior or a Premier. I shot it again last night (single hand unsupported) and can fairly consistently hold the black aiming mark on the NSRA 10 metre precision target (60mm) which is about what I can usually achieve with my Premier or more significantly with my FAS 604. I must admit that it's much easier with the FAS but maybe not as enjoyable.
Regards
Brian