Are they working as intended? Are they only supposed to reduce the base SP cost of the metamagic feat SP cost and not the reduce the total cost of using a metamagic feat?
There have been numerous posts saying that it is "broken" because it only reduces a percentage of the base cost...but if this is the desired effect it would be nice to hear that it is working as intended from someone on the staff so that casters could abandon these worthless (if working as intended) enhancements.