I am not sure if anyone else posted this, because i did not read anything prior so if you already posted, sorry to restate the same experience --- I have noticed the experience gain for each rune. the ZMI alter gives you 2x the experience that you normally get per rune if you get 1 air (5xp each) you get 10xp 1 mind (5.5xp each) you get 11xp and so on blood runes give you 21 per rune (so it would be 10.5 if there was a normal alter) and if the pattern continues, souls should give you 22xp each (11 if there was a normal alter) just incase there is still gray area... let us say you recieved: 3 airs (5xp ea) 5 fires (7xp ea) 10 natures (9xp ea) 2 deaths (10xp ea) if you got these runes for their normal alters, you would recieve 160 xp. however from the ZMI alter, you would recieve 320 xp. __ this is benefical to training runecrafting because each essence has the possibility of giving you 10 - 22 experience per essence. where training on death runes can only give you a max of 10 experience per essence. Plus, the ZMI alter is safer and faster than using the abyss, or walking through the dungeon again. ___ I have tested this buy doing 1 rune at a time and confirming my experience and what rune was recieved. hope this helps you figure out how much experience your getting and helps you train better =]