Depends on price point and purpose. Bigger hooking balls with surface usually require more up keep then others.
This has been the case for a long time. Most anything else usually requires much less.
I think he's got it.
Nothing new under the sun.
The bigger or stronger the hook, the greater the amount of oil is absorbed and the faster it is absorbed. Less or smaller hooking balls tend (mark that word, "tend") to absorb oil slower.
Cleaning the ball after each use, IMMEDIATELY, is a major key to longevity.
Ya gotta, Ya gotta, YA JUST GOTTA get the oil off the ball as soon as possible. No IFs, ANDs or BUTs about it.
Those people cleaning their balls just BEFORE league are either idiots or totally uneducated about ball maintenance. By this time, I just feel sorry for them.