i understand im not a builder, thats why im asking people on here what they think so i can have a better understanding of what the difference is and why. i just dont really know. i trust my builder for sure no issues there at all. there are people that have replied to this to run a 115 rod then some say the 120. im trying to learn as much as i can and i dont want to get told to just run this its better....why is it better and how thats why i started this thread. im here to learn and pass on info as i learn it.