That seems to work for me under MP2 My first guess is that it has to do with status renamings...
Instead of setting something to 200 / 500 , why not just set it to the name of the status code, then use a Hash to pull out the appropriate code for apache1/apache2?
personally i like 'human text' like that, then looking stuff up in a hash of values when you need the integer code. it makes debugging way less painful.
