[Snowball]

.
That said, the rings are best used in a party though when you can get exp faster. Also I'd recomend the Empress band over the Chariot Band. It may only be +50% rather than +75% but it can give a total of 1000 exp rather than just 500.

Thanks for the hint. I might just do that.
Though I realise that these rings/bands are rare ex and I don't think you can use two of them once. So I think I may just have to throw out the chariot band and replace it with an emperss band instead.