Thought I mentioned it previously, but fork is definitely stamped Columbus. No rifling anywhere that I can see to suggest Columbus tubing, buts it my understanding depending on age and guage that not all Columbus featured rifling.
I love the lug extension and think it is awesome. It's absurdity adds to it's character. Doubt it will be practical as I'm a big boy, but we'll see.
Appreciate all the input guys! Keep it coming.