He would kinda be stronger, but not really, like SSG3, would just be 8* stronger than God, which is obviously much weaker than blue, he could do SSB3, but that is weaker than kaioken*20 since he would only be 8* stronger than blue with SSB3, while he would be 20* stronger than blue with blue kaioken, SSB3 kaioken is out of the question, it would be too much for his body to handles even if it wasn't, UI is still much stronger than an hypothetically SSB3 Kaioken * 20 Goku, gives him much better reaction time, auto dodge, and less strain on his body, it's overall better, the most he could do is SSB2 Kaioken*20,but at that point he should just unlock SSBE instead and use kaioken * 3.

What do you think Blue is my friend?

By all means he should be stronger within DB logic, I mean, saying that Blue Kaioken 20x being stronger than SSB3 would be the same thing as Super Kaioken 20x being stronger than SS3. He didn't need 2 nor 3 so why didn't he do it? I just find it silly that Goku would have a harder time with Super Kaioken than with Blue Kaioken when Blue by itself is hard to handle than Super Saiyan.

I'd love to see more variations of the Blue forms just as Rose did.

"By all means he should be stronger within DB logic, I mean, saying that Blue Kaioken 20x being stronger than SSB3 would be the same thing as Super Kaioken 20x being stronger than SS3."

It is, ssj3 is 4* ssj2, which is 2* ssj, so ssj3 is only 8* ssj, ssjKK*20 is 20 times ssj.

"He didn't need 2 nor 3 so why didn't he do it?"

Who said he didn't need them? He didn't master ssj yet, there is no reason to use kaioken on top of an unmastered ssj, that would lead to disaster on all fronts, Goku was more into evolving super Saiyan than just adding kaioken, there isn't much to say that his body could handle all do that either, Goku couldn't even handle basic ssj3, let alone SSJ3KK, it would destroy his body.

" I just find it silly that Goku would have a harder time with Super Kaioken than with Blue Kaioken when Blue by itself is hard to handle than Super Saiyan."

You have to remember that Goku's body was far stronger when he did BlueKK, and even then, blue kaioken would have killed him, blue is much stronger and harder to handle, but Goku's body has also been improving as the story does on, if Goku tried to use kaioken on top of his other forms earlier in the story, he would have likely dead, and by the time he could use it without killing him, they get overshadowed anyways.

"I'd love to see more variations of the Blue forms just as Rose did."

Me too.

Depends on what he's mixing. Ultra Instinct is kinda apex right now, and it's definitely more than 8X stronger than Blue. It's well over 20X stronger than Blue.

That being said, I question the standard multipliers of Super Saiyan forms.

I'm pretty sure he would.

Ye, I still think he will mix mui with all of his transformation or something liek that in future