You of course sent examples to the author of Perl::Tidy? The same author who specifically says that it doesn't work for everything? Also the same author who asks for help in running down the problems found in the field-- Or is enough for you to say that you just 'don't trust Perl::Tidy to not break code'... Of course it might be the case that code that breaks Perl::Tidy is complex to the point that it needs to refactored anyway---hmmm, useful even when it doesn't work; hard to beat that!