I went that route (the A1-QS3-Wugu1-Falc3). I like it, Wugong Gu is very useful for single/AoE target situations. It allows me to focus on 1 target and while that target has Wugong Gu, every physical damage hit it takes, it spreads the poison to enemies close by. This also gains benefits from aiming’s increased range.
Also Wugong Gu’s poison (DoT’s) when spread to another target can crit.
Wugushi also gets great benefits from blessing, last rites, sacrament, and enchant fire in its poison attacks (DoT’s) ticks. All of which we like to use for our running shot autos.
I haven’t tested Wugu and Circling interactions yet.