I personally would like to see a gump added for crafting, perhaps for Arms Lore, that would let you do one of the following:
1. Increased chance of a specific property, based on your arms lore bonus (you'd set separate toggles for weapons and armor). The current "bonus to Exceptional random armor points" and "bonus to exceptional DI" would remain as the default, if nothing chosen.
So, for example, you could choose "Mana Regeneration" for the "Armor" setting, and you would get a 10% additional chance per 20 points of Arms Lore that it would be the first property applied from the runic. Using this for a specific resist, on an armor, would allow a crafter to make some of his items with the entire arms lore bonus put into a specific resist (while the other 15 or 6 bonus resists would remain random). Items that do not have the special effect trigger, do NOT get the default.
2. Option two would be to choose a non-toggle property (toggle properties are ones that, in normal items, are either there or not there, such as UBWS, SC -1, Mage Armor, FC 1, etc.). That property, if rolled randomly during the item creation, would get +10% intensity added, per 20 Arms Lore, to the rolled intensity level. So, if you choose Mana Regeneration, there would be a chance that the item would have Mana Regen 3 (And the resultant higher intensity for imbuing), at the cost of not having the Arms Lore resist bonus.
3. Or, if an item was made with a normal tool, there would be a 10% per 20 points of Arms Lore that an exceptional item crafted with a standard tool would have it as a bonus property, at the intensity of the chance (so, for example, you could only add Mana Regeneration 1 to an item, this way, as you'd not be able to go over 50% intensity).
This would make runic crafting in general, and crafting normal and runic items to further imbue, more useful and less costly.
Personally, I'd like to see all armors get the "automatic mage armor" as a free property, when crafted exceptional. It would get rid of all the excessive leather use by those cramming in as many properties as possible, on a runic suit (leather would still be the choice if most imbuers, though).