I guess the 1st column (Grind level) is Enchantment level? What are the columns 2 and 3 about? (looks like numbers of patches)? The line 4 says "In-game stones), mine are all in-game, I don't see how numbers of patches are relevant or opposed to "in-game stones"? The success rate is really low overall
Usually I go to +5. I'm mostly interested in Greater runestones as Apostles Transformations are mostly used on mt accts. I produce them, buy and sell them at the broker and trade between accounts. Following the descriptions, even unenchanted runestones have some effect, especially Attack. So, while I never use EXP runestones lower than +5 but I sometimes use Attack runestones at +3 before getting them to +5. I make slots in wings, as Kerub's wings don't satisfy me in Flight Time. Support slots in Kerub's plume and bracelet are already what I need (EXP, Drop, sometimes AP for young toons). Are Area strike and Additional strike more effective than Attack Increase, Critical Hit Increase and Successful Strike? It's a pity there's no icon, visible stat change or animation when Area or Additional Strike come to effect, while Crit and Attack show icons and and stat increase, but I saw very tangible results from Area Strike in Garden of Growth, especially for Templars, Assassins.
What do you think about Boost Runestones?
I like runes in RL, as an instrument of magic. I would assign Attack Runestones to Teiwaz rune instead of Fehu, and assign Fehu to Drop rate, EXP, AP acquisition, that would be more corresponding to the Runestones' effects.