Raditz was training in the underground floor of Satan's manor.
It was a huge bunker style basement capable of taking a nuclear attack or two, Satan had built this in case of an emergency.
Raditz had moved around a lot of stuff here, and got himself a nice hyperbolic time chamber like room, or course it was without the time dilation or super gravity.
" Ha! "
Raditz punched gracefully, his muscle mountain of a body was moving swiftly and efficiently.
His muscles weren't for show and it showed, each of his muscle fibre was built with efficiency in mind, that's a warrior race for you.
" Haaa! "
Kicking an imaginary opponent, Raditz kept practicing basic movements again and again, for that was the first step to forming instinct.
He took Roshi's words pretty seriously, Roshi was one of the few who figured out the core of ultra instinct, just with sheer experience.
It was all about moving with the opponent on instinct alone, and to do that, he needed to build that basic instinct into his body first.
* Woosh *
His leg cut the air as the atmosphere shimmered, he gracefully balanced himself back and immediately delivered another powerful punch.
None of his movements were done purposely, all of it was done according to the invisible opponent before him.
" So coool. "
Murmured Videl, who was sitting on the stairs with stars shining in her eyes, clapping in joy from time to time when Raditz showed a particularly swift movement.
Each of Raditz's movements were done slowly, as he was only buliding instinct, so Videl could see every movement.
If this was Raditz going full speed, only humans on the level of Krillin could barely see him.
" Huff. "
Letting out a breath, Raditz decided to stop his training for a while, he was going to take a break.
Walking up to his towel he began wiping his mane, removing any excess moisture settling in.
" So Videl, what brought you here? "
Asked Raditz and Videl stood up sheepishly.
" Mr Raditz, mom told me not to disturb you but I.. I wanted to see you train.. sorry.. "
Muttered Videl, she was only getting started in her martial arts career, so she was curious about everything.
And every move of Raditz had a natural symphony to it, he had started to dig out the warrior race's instinct day by day, and it was showing what good training direction can do to a Saiyan.
Raditz didn't really care about Videl running out to see him train, he only smiled and chuckled a little, turning to look at Videl he spoke freely.
" It's okay, I don't really mind. "
Drying his mane with ki Raditz spoke again, putting the towel back in place.
" Just let me know before you come, you might even learn a thing or two then, I'll slow down for you. "
Videl nodded with a smile of her own and skipped away, she was going to ask her dad for training in Satan school of martial arts first.
Her dad told her that's where she should being, she was to be the next Satan! Or deVil in her case.
Then she can fight against her uncle Raditz too, it will be so much fun.
" Thank you uncle Raditz! "
Came Videl's fading voice and Raditz smiled softly.
" Uncle Raditz huh.. am I the piccolo to Videl? Haha. "
Laughing at the situation he found himself in, Raditz walked upto the corner of the training hall and took out a cloth covering something up.
* Flutter *
Putting away the cloth, he glanced at the remains of his spaceship he brought back from the cave a few days ago.
He had purchased a lot of technical manuals from capsule corporation, their top of the line gear and workbench, he even watched how to videos.
Raditz was fully prepared to fix this bad boy up, capsule corporation even had a self testing machine that could tell him exactly what was wrong.
" And this works for any component, figures they had something like this, be it the scouter, Saiyan pod or android 16, the Briefs figured out foreign tech way too fast. "
And this little tool right here was the culprit, as long as it had tech in it, you could check it's defects, this marvelous gadget was Dr Brief's work.
It infact even worked on biological things, but it isn't much use there as one can't really do anything even if they are told their bone is not dense at a particular point, that information becomes a moot point.
Humans weren't machines that you could take apart and fix that density issue for optimum performance, but you could do that for technology.
" Alright let's get started, I also need to update my scouter, I jammed the signal components before to not alarm Vegeta and Freeza, need to work on that too. "
Muttered Raditz as he sat and began working on his space ship one part at a time, starting with the things he had to fix in this absolute mess.
Fixing the shell, testing the components, removing any unnecessary parts and replacing it with better capsule corp technology.
Believe it or not, there was even tech out there on Dr Gero's name, not android 16 level tech, no, it was android 8 level technology.
The most basic cyborg, and Goku's friend, Eighter.
This technology was being sold by Gero in exchange for funds, red ribbon army was no more, so he had to make due.
" I don't need such a weak cyborg, but I do need it's intelligence module design, I'll add it to my spaceship and scouter alike. "
Raditz was ready to add real AI to his gadgets, he wasn't a man who didn't know the sheer potential of technology in Dragonball.
Trunk's timeline was almost destroyed due to the androids, and he will use that technology to turn his spaceship into something fearsome.
He had the how to guides in his hands, the technology and the time, he could do this.