After Toz helped him figure out that there should be a more effective way for him to train, Joshua had been trying out the few things he could come up with. Such as trying to convert the mana he absorbed into bubbles instead of neutral mana. However, that didn't do much other than give him a headache. After that, he tried to train his mana while swinging his bubble ring around, like someone with a martial type inclination might do.
But Joshua did notice a slight improvement when he tried training while holding the ring. His discovery was an accident since he was resting with his ring in hand after swinging it around like a madman trying to get his body to absorb the mana in the surroundings. However, with each swing, it became increasingly apparent that it wouldn't work.