To elaborate, from what Iv'e seen of the oddments system: every time you roll you get a reward and oddments equal to that roll's oddment value, you can keep the reward or swap it for oddments of equal value earning effectively double oddments. A lucky roll appears to be 2500 oddments (could be wrong but bear with me) As such I would receive 2500 oddments and two spears theoretically, but one is converted to oddments meaning 5000 oddments. But I only received 2500. Now I may have missed a message about oddments or something but I don't think so as there was not much chat clutter to make me miss it. I only ask that Jaggex check and make sure the system is working right and rewarding extra oddments for these partially awarded prizes.