Must be there are different styles of getting in and out Have both and easier with no cage for me and esp mine spine
Sorry to hear of Your SS tear, I know its painfull and restricting. But frequently this has many coincidental causes (previous trauma/s, tendeon degeneration, inflamation, individual anatomical conditions etc) then when comes even not so strong stress - it can tear.
As for safety and cage - just thought now - in normal car with cage is unwise to drive without helmet and special FIA energy absorbing foam on bars. I drive mine caged Westfield only on tracks so foams and helmet on. But If I want to put it on roads maybe someday not sure if will leve cage for that reason. Heard of accidents in normal cars with cages added effecting with head trauma - hitting on cage bar with head, in case of even not major accident. And driving Westfield in helmet for touring takes I think large part of the fun and experience of open car.