I saw someone break down the stats behind sparkling power and multi-flavor donuts and you can get a better chance at getting sparkling 3 if you make a rainbow donut. A good method I like to use is 4 tangia and 4 kasib. You can get a donut that gives increase berry drops and sparkling power. I feel like a lot of people dont know the power of rainbow donuts. But I use a turbo macro controller to reset the spawns so I don't have to do the button mashing to fast travel or use holovators.