This season I will be bowling in only one league, an old wood house. According to which side and which floor, the shot ranges from Medium, Dry, and Desert. Right now, I have a Rattler and Neptune, undrilled. From reading reviews, BTM and watching videos, it seems that the Python is very close to the Rattler, some people are saying that it could be stronger in some instances. The Avalanche looks like it could be the right one, but is it too close to the Neptune? The best way to play the shot is to start inside and swing out. Which of the two (Python or Avalanche) would best fit with enough separation btween the two that I have? About me, I have medium revs and speed, working on eliminate the early turn in my downswing to allow my revs and speed to go up a notch.