Equuleus_Nox
Although I know that Ajax wants to increase his strength, but is it necessary for him not to make Goku or perhaps other characters not become stronger according to his knowledge? Although I know that he doesn't want to expose his future knowledge, etc. But he somehow has the brains to figure it out, right? For example, at a later stage, saying that the Saiyan tail is an extreme measure to increase growth potential or something to gain access to SSJ4. Also help him teach him techniques that he thinks Goku will need in the future. But you'll see how you develop it, I'm just giving an opinion, don't take it too seriously.
Dr. Wong? Are you going to implement the multiverse concept when the MC is powerful enough? If someone as talented as you explores the multiverse with your skills and inspiration, if of course you are inspired, it will become even more extraordinary xD. But I have my doubts, it would be a lot of work for you. I don't think you will