Since Void is about inner peace, I've been trying an alternative for regaining points. I've been letting my characters use a scene to make a void+artistic type roll to get void points back.
Examples are like void meditation, void tea ceremony, void gardening, void calligraphy, etc.
I've set it at tn2 with an extra void gained for two opportunity.
So far I like this as it allows the characters to take a moment of respite to recenter themselves and find inner peace.
I'd love feedback on this if you have any.