Basically, what lookoutbelow said. The TRI/TRE is no longer required after the initial four sectors, although of course you may fly with one as a training captain after the four sectors. Safety pilot release is at training captains descretion.. if at all
See what your saying about sending line checked SSTR students off after training LST, but again it is the CAA issue. Indeed, BOND 'endeavour' to get a mix on the courses so that experienced pilots (and by this I mean multi-crew experience.. even on a shed!) can join the airline with less contention from the CAA even though they have the same hours on type (737) as a low houred guy.. it's all about airline experience again, hope that may clear things up
747 Downwind