conduit 66 above the connection assembly 70 in the embodiment of fig4 the connection assembly 70 is illustrated having an outer cylindrical configuration and shown protruding from its lower end is connector sub 72 for this embodiment that as will be described below couples to the upper end of a riser flow line 48 a center line c l axially bisects the connection assembly 70 to the right of the center line c l represents the connection assembly 70 when in an engaged configuration and in connection with the flow line 48 fig2 on the left of the center line c l the connection assembly 70 is in a disengaged configuration fig3 as seen in fig4 the connection assembly 70 when disengaged is at a higher elevation and thus circumscribing less of the male sub 72 than when engaged fig5 provides a rearward view the gooseneck assembly 54 of fig4 shown in this view the bridle 60 shape is generally triangular having a pair of lead lines 64 depending downward from opposing sides of the bridle 60 base the connector 62 is shown on the apex of the bridle 60 represented by a dashed outline are cable guides 67 anchored on the inner surface of the housing 68 proximate to where the conduit 66 enters the housing 68 the cable guides.