I see nothing wrong with going with a known factor. I always re-strings my new bows. I make my own and I know exactly what to expect from my own strings. It's not being made by a worker who migh have a hangover or someone who might be daydreaming when they made mine. Even if my bow came with a Winners Choice string, I'd replace it. It would make a good emergency backup string, and everyone should have one of those anyway.