Steve, thanks for following-up. For point one, I mean that developers have free range with helper definitions and that they eventually find their way into cont

Steve, thanks for following-up. For point one, I mean that developers have free range with helper definitions and that they eventually find their way into controllers. Interesting news about performance tests in <4. I didn't realize that, I'll check them out. The eval problem is as follows (typically if you have to eval something in a gem): class Foo < ActiveRecord::Base before_save :bar .. end Foo.class_eval do # I want to remove before_save callback here without having to redefine it. before_save :bar ... def bar return end end It's not a big deal, just adds clutter. Thanks again!