Thread:Neosonic97/@comment-27511601-20160806171629/@comment-26418719-20161023222112

...That makes more sense than I'd thought, and it also ties in with a theory I've made about the Chaos Emeralds themselves being infinite, and what isn't infinite is the power that can be drawn from the emeralds by any given user. It would also explain the wildly fluctuating power that Sonic displays in his Super Form.

At his best, he would give DBS Goku a run for his money but at worst, he'd struggle to beat Frieza Saga SS1 Goku.

Saying 'Varies' actually makes even more sense with a piece of fridge logic- the Chaos Emeralds. Chaos in this case being randomness/unpredictability.