All of these points present well-rounded perspectives on the importance of how we train, IMO. I also agree with
@geezer and his assessment on Lat Sau Jik Chung (arguably the most important part of the maxim,
Loi Lau, Hoi Sung; Lat Sau Jik Chung 來留去送,甩手直衝).
Wong Shun Leung used to say that the only range in Wing Chun is the range in which we could hit. I believe this was one way in which he continually reinforced the habit of placing the idea of Lat Sau Jik Chung at the center of skill development.
From my training, we never intentionally create a bridge first in an attempt to hit or control. The goal is to strike the target with chained attacks, not to chase the opponent’s hands. This is implemented by utilizing Lin Siu Daai Da (simultaneous attack and defense 連消帶打), which is thought by many to be the science of Wing Chun. The hands go forward. If the way is clear, hit. If the way is blocked, clear the way and hit. In this way of thinking, hitting is the focus and a bridge (contact) is simply a momentary byproduct/consequence of removing an obstacle to facilitate the hit.
We strive for a reflex set that is simple, direct and efficient. When developing these reflexes, keeping Lat Sau Jik Chung as a constant compass can make an impact on how we learn. In doing so, the concepts and principles of the system such as: attack and defense together, chase center (Jui Ying 追形), hands on top, take position (Chiu Ying 朝形), ground power (Lik Chung Dei Hei 力從地起), etc… can be properly developed while keeping in mind;
that when the hands are free of obstruction, attack instinctively. Training realistically to be able to hit from where the hands are at any moment (without a bridge) builds important skill, reinforces the correct Wing Chun system mechanics, and can remove the idea that it is necessary to establish contact
first before hitting. Something as simple as working the focus mitts can reinforce good hitting habits that are easily digestible by the system's core concepts and mechanics.
