So one thing I've just noticed about the Freeza Arc. When Galu arrives, Kuririn says he'll be no match for Reacoom regardless of what training he'd done. Doesn't this seem pretty hard to imagine, given his power with Kaioken x4 before the training? Kuririn also expected Goku's new training to be a game changer, implying that he'd be >> KKX4 Saiyan Arc Galu by the time he arrived.
I mean, you could assume he was factoring in Goku taking on Reacoom, Butta and Jheese at once, but it still seems like an inaccurate estimation, even if taking into account how little Toriyama cared about battle powers.