Anybody gone from the 718 to the 620? I played the 716 years ago and loved them and demoed the 620 with the LZ 6.0 the other day. I was hitting them laser straight and loved the look and feel. That said, after reading up when I got home and looking around online, I found a set of 718 CB new with the LZ 6.0 and jumped at those because of the more tungsten up to 7i. Are the 620 pretty forgiving even without the tungsten or is there a noticeable difference in help with the 718? TIA.