4 goldenrings wont stack with 2 fbh. and without fbh u'll deal less damage.
And u can cast flying side kick without running if you can chain the skill's target. e.g. (my friend is the SG, Casts run then fsk me then fsk the character next to me then back at me.) and cause the population in woe is massive. SG is actually on an advantage there.
nonetheless going back to the thread's topic, the hard delay will really be of use on pvp and SGs' performance.