I can say for certain that my background in new construction helps me out in the service world. Trying to explain what might be hidden in walls or under the slab to another plumber that's only done service work can sometimes be frustrating. Because I've put them together before it's kind of like having x-ray vision. I wasn't a great service plumber right away, just because I've done new construction but it does help. On that same note, I've seen lots of new construction plumbers where that's all they know and they barely know that. They were terrible service plumbers. There's a big part of being a service plumber that involves your interactions with people and being somebody the customer can relate to. In new construction you don't have to think about that; spit on the floor, cuss all day long at volume 11, throwing tools, etc. Some guys can't break these habbits. A guy that works at a parts counter and has a huge product knowledge might have a leg up on the plumber because of his people skills. All the facets of the trade are different enough that none of them can prepare you 100% for any other.
Paul
Paul