Having read many posts here and other places, there are very few comparisons of any of the newer track balls to the 718A. I haven't read everything so i may have missed something. I love my 18a. For me, it is rarely angular except on flatter, fresh patterns. Once some friction develops, it arcs its way to the pocket. However, my son has been throwing it and would like to have it. Anyone thrown the newer ones and can say this is it? The 706A has a higher RG and should be a bit cleaner up front. The rest of the 7 balls are set up to be rolly and continuous. Any ideas?