Or a top-level boxing technique like 'Tiger Crane Double Forms'.
In short.
Once a breakthrough is achieved, Yan Chuan's strength can greatly advance.
Mastery in boxing techniques is never solitary.
Take Che Qi for example.
He mainly studies 'Hu's Stabbing Foot', but for the past month focused intensely on 'Horse Stance Training', and with advances in 'Horse Stance Training', 'Hu's Stabbing Foot' has been nourished and has also made great strides forward.
Another example is Wei Quan.
His 'Tiger Form Boxing' is only at the Third Realm, yet his 'Horse Stance Training' has broken through to the Fifth Realm. On this foundation, not only has his 'Tiger Form Boxing' progressed rapidly, but even at the Third Realm, the power exerted far surpasses that of ordinary people.
Don't underestimate his recent defeat to Lu Jun; after all, he is a third-level research student at Guangling Academy, an elite comparable to Yan Chuan in July.