Assuming he managed to learn it, there's a non-trivial chance that he would continue on anyway. He's a literal alien, and might have an alien mindset.
True, which is why it's not an
automatic "we trust him now". It is, however, probably a "your heart has to be pure for some value of pure" thing like Super Saiyan.
More or less like my thoughts.
I think that we could ask our friends from Namek to create a fake body, for credibility.
And I'm not sure that it's worth wasting a wish on this. If we'll have time for preparation, then we, most likely, can cope without it. And if we'll use wish, we can just wait for his death and then resurrect him. This will be a
much more reliable dramatization.
I would
not rely on our ability to resurrect anyone killed with that Vile Deletion Wall thing.
For reference, my current understanding of our hoped-for Kakara Style is something like this:
Involved Techniques: Hand-to-Hand [Team Fighting], Perfect Multiform, Flight, Instant Transmission, Solar Flare, Kikoho, Shin Kikoho, Genki Dama, (possibly Combat Precognition, possibly Thunder Shock Surprise, possibly Four Witches Technique)
Penalised Techniques: Hand-to-Hand [Duelling], Lethal [All]
I would basically reformat this as "what roles are we trying to fill". To that end:
The core is that we're trying to gang up on opponents. Basic Team Fighting is obvious, but maybe we should also classify a new Ki Projection type called Ki Projection [Team Fighting]? That'd cover a variety of beams and blasts and so forth, but always with the intent of supporting teammates.
Perfect Multiform is an obvious multiplier, and the main way to use this style when we don't have backup. It also represents a source of teammates we know perfectly, so it really
should have the bonuses associated with an Involved Technique.
Positioning is obviously really valuable to this style, so Flight and Instant Transmission are shoo-ins. That said, we should probably try to learn the Namekian version of Demon Style at some point - battlefield control is
equally valuable. (And as
@Koraan points out, Telekinesis is an obvious form of that. Kiai is also cool and maybe relevant?)
Debuffs are obviously useful, but I think
most of the proposed ones can and should be rolled into Hand-to-Hand [Team Fighting]. The non-melee one we have, Solar Flare, is wide-angle - we might want to hack a less friendly-fire-prone version, or learn to seamlessly fight blind. (Which doesn't have to be Ki Sense only - hearing, maybe smell, we have options.)
Finally, finishers. Genki Dama isn't likely to be surpassed in its' "really big bomb" role any time soon, even if we only power it with our own ki. Unfortunately, that makes it kind of hard to hit a grappled target with, unless we're willing to sacrifice a Multiform.
Likewise, I don't know if the Kikohos are our
optimal Big Blast set. (If nothing else, I want to see what Jaffur Style has for the role.) I think our main finisher should
optimally:
-Hit ludicrously hard. (Can we synthesize a Life/Spirit/Will attack, since now that we have psychic lightning we can do all three individually? Or is Spirit basically the same as Will, or a synthesis of Life, Will, and Mind? We should look into this.)
-Be downscalable enough to not kill anything we'd actually use it on.
-Be precise enough to work on grappled opponents without sacrificing the grappler.
-Possibly be
widenable, to work on huge opponents or strong groups?
-Relatedly, we have a whole bunch of buffs we could stack on this in various combinations. USSJ/Golden Great Ape, Overcharge, Ki Refinement, Kaio-Ken, even Willpower Push. Exploit this for strength modulation?
MY TL;DR CONCLUSION: We should make the main trick less granular, add some battlefield control, and plan on developing a better finisher. Otherwise, this looks good.
(Suggested technique/sub-technique research: get fast enough with USSJ transformation to use it for strengthening grapples, integrate our lightning with our hand to hand (and ranged attacks, if practical), train up Telekinesis and maybe Kiai, learn to fight blind, improve/supplement the Solar Flare, and eventually, figure out the finisher described above.
Suggested style research: Tenshinhan, Demon, and Jaffur, in that order. We should also take a look at Krillin at some point, but after Demon I expect to be stuck to visions anyway, and I kind of suspect Jaffur tried to teach Jaron.)
I'm doubtful that we'll be able to make it instantaneous to the degree that the USSJ flicker trick would require (since that's like, turn it on mid punch to avoid the speed problem)
That would be pretty cool, but probably a
lot harder than "I've already got a grip on you, so now it doesn't
matter if I'm slow" would be. Plus, if we're trying to push the limits there, it would also be cool if we could figure out how to trade power for speed.