That's an interesting observation ****************. Obviously everyone's systems' performance is going to be vary at least a little from time to time, and I will admit to mine seeming to slack off during the winter season. It's still breaking even since the middle of April until now, but it seems to really pick up from Spring through till April. Over the last couple of years I've noticed March is my system's best month of the year. Can't wait for Winter to be done with, and for the Spring Carnival to arrive. Good luck with your system observations mate.