I'm looking at a ball for those rare times at the start of tournaments when you realise there is a s#*%load of oil. I realise this ball won't get used often and I know the drilling I wish to use (4" pin down, mb past val). I'm not brand limited, so the equipment I've been trying to decide on is an Invasion, Pure Physics, 920T and Plague. Has anyone had experience throwing some or all of these and can do a decent comparison?