Luke did learn a couple of things after experimenting with Max.
At the very least, he confirmed that the stretchy/double resistance ability reduced the sensation of pain, while there wasn't much of a difference in the degree of sensitivity.
This should be a good thing for many men, but it was hard to say if it was good for a certain person with extraordinary stamina and resilience.
However, when it came to life-saving abilities, he couldn't ask for too much.
Recalling that Elementary Tempering, which could only be learned at 80 Strength, was an ability that was automatically activated, Luke rejoiced a little. Although it wasn't as convenient as this passive ability, at least he didn't have to worry about the sense of friction being significantly reduced.
…
After this rather busy break, Luke finally released Tamiya from Space 2.