For those shooting tourney I think if you were to put a clicker on your bow and learnt to use it correctly you would all see an improvement in scores, regardless of aiming method.
Although I'm not allowed to use a clicker in tourneys by visualizing myself expanding through a clicker has improved my shooting. A clicker is only allowed in IFAA Freestyle or Barebow Div.
If just for experimenting or practice you put a single pin sight on you bow you would learn to appreciate what continued back tension\\expansion does for you, as it allows you to maintain steady aim on target without drifting or figting to keep the pin on the target centre, even just my normal gapping I feel more settled on the gap/target when expanding through the shot,it also stops me anticipating the release as the expansion is what sets up the chain reaction for release.
Expansion also increses the chance of a better 50/50 Scapula balance during release,all that being said it will likely only give you an extra 10 points in a tourney so maybe only worth learning if you really desire to reach the top on the tourney circuit.
nicely described Moebow