Does Chappa need to be above 22nd Budokai Goku though? He lost to a suppressed Goku.Far weaker than Kuririn and Yamcha as she couldn't track Galu and Tenshinhan, though still likely above the 22nd TB competition based on her confidence in taking on a Goku that oneshotted an improved Chappa. Taking into account her making Goku sweat and factoring in a loss in shouki to not make it inconsistent, she's probably not far off Cyborg Tao Pai Pai's level. I'd disagree with the idea of her feats being superior to his though as Tao was fast enough to catch Ten off guard with his hidden blade despite Tenshinhan's 3 eyes naturally amplifying his reactions.
That's a fair point, but then when characters like future #17 says they used "less than half" power, should it not be taken in terms of battle power too? Or Vegeta stating his Oozaru multiplies his power by 10. Plus, chi seems to be the main source of Piccolo's power, shouldn't he have that in mind when performing those statements? When chi was less so of a thing, then sure.The "several times stronger" and "less than half" lines needn't refer to Ki, seeing as how it's made very apparent gaps in Ki aren't really a linear baseline for measuring gaps in destructive capability, physical strength, speed, etc. unless Kaioken is involved. Take into account battle powers implying what's realistically a gap of over a million times like that between City busting Daimao and his Moon Busting son isn't even a 2x one. Assuming that such statements were purely referring to physical strength or more conventional energy values, there's no real reason for them to play a role in gauging the characters' Ki.
That goes back to my point before, then... the earlier statements of DB are more easily shrugged off, like Karin's one.With Vegeta's example and many others in Z, that was a point in the series where Ki control that would be considered extraordinary in Part 1 had become the norm. Take into account how few characters could use bukujutsu in Part 1, a skill so basic even the weakest of Freeza's soldiers knew how to do it, or how Goku could initially only fire Ki through the Kamehameha until his training under Popo. The Ki control of Part 1 characters was very poor and rudimentary compared to later on in the series, and therefore wouldn't be something factored in to power statements prior to Z unless explicitly stated to be so. In the case of #17, leaving aside how he runs on a completely different source of power entirely, he'd be more familiar with power measurements through battle power (ie. Ki) or whatever metric Gero used for both his scanner and data.
I think it's also worth noting that Yajirobe witnessed the level of power <50% old Piccolo used to smash Goku and knowing Goku defeated Piccolo Daimao, still decided to attend the 23rd Budokai... Yajirobe doesn't seem the like to want to be clobbered badly, so I'd wager he could have surpassed <50% old Piccolo Daimao by the 23rd.