I have two main suggestions that I think should be considered.

1. Please let all casters take the enhancements that relate to metamagic feats. If my 18th level cleric wants to take improved maximize III enhancement please let me. Why so restrictive? I think if a feat can be taken then all of the enhancements directly related to that feat should be automatically available regardless of class.

2. Please expand the random items in the game. Example: why can't i find a +1 improved devotion IX club? How would that unbalance the game exactly? Minor spell pen IX? ring of natural armor +3? Raid loot would still have multiple effects that normal items couldn't have together. Why not?