in reply to How Large Does Your Project Have To Be to Justify Using Moose?

I've never used Moose before, and I see there are stripped-down versions like Moo and Mo. Does it make sense to go with the smaller versions, or even with a different system altogether?
How can anyone possibly answer that without knowing the code?

But I would start my questioning with "does it need re-writing"? What's the benefit? What's the cost?