On the Second Layer, these three super-level Bone Forging Realm training techniques not only strengthen the five internal organs to 100%, they also have branches.
The first technique focuses on strength. Once learned, it can further enhance strength, increasing it by up to 2000 kilograms when at the Refining Internal Martial Artist stage.
The second technique focuses on speed and reaction. Once learned, it can further enhance speed and reaction, increasing speed by up to 20 meters per second and reaction speed by 20% at the Refining Internal Martial Artist stage.
The third technique is more balanced. Once learned, it can enhance all aspects, increasing strength by 1000 kilograms and speed by 10 meters per second and reaction speed by 10% at the Refining Internal Martial Artist stage.
For high-tier martial artists, the limit is only about 4000 kilograms of strength and a speed of 60 meters per second.