Although it could not compare to the complete Super Saiyan God transformation, the Super Saiyan 4 level could be continuously developed—from the initial transformation, to Full-Power Super Saiyan 4, and then beyond Super Saiyan 4, into the all-out Full-Power Super Saiyan 4 state.
During this process, although the increase in battle power would not rise drastically again,
the cultivation process of Super Saiyan 4 could accommodate more ki. This allowed Saiyans who reached this level to greatly accelerate their cultivation speed for a period of time, massively increasing their base-form battle power and thereby raising the battle power of their Super Saiyan 4 transformation.
Take Sun Wukong of this timeline as an example.
Once Sun Wukong, whose base-form battle power was now 375 million, transformed into Super Saiyan 4,
over the following year, even without Whis's guidance, his base-form battle power could undergo an explosive, leap-like increase. It would not be impossible for it to multiply several times, or even more than tenfold.
After explaining Super Saiyan 4's power and its various strengths and weaknesses, Baros finally began explaining the transformation requirements for the two different evolutionary paths of Saiyans under Sun Wukong's impatient gaze.
With the guidance of a powerful Angel like Whis, Super Saiyan God could still be cultivated through one's own efforts. A faster method was to find six kind-hearted Saiyans and have five Saiyans inject the light of justice deep within their hearts into one righteous Saiyan.
A Super Saiyan God produced through this method might have a time limit.
However, it allowed one to fully experience all the power and might of the Super Saiyan God state.
As long as one continued working in that direction afterward, it would be easy to transform into a Super Saiyan God again.
The only drawback was that