I have always found it interesting to watch how the hot hand changes among the various drop catching services. Over the past year I have seen the various services (both large corporate ones and the fesity independents) each have a turn in the spotlight where it seemed like they were catching everything in sight, then they go ice cold and can't catch a thing.
I don't know that business, so I can only assume there is a constant game of one upmanship going on with each rolling out improved scripts and greater firepower to answer when competitors move ahead.
Maybe Cartoonz, DropWizard and some of the other insiders could fill us in on why the leader of the pack seems to be in constant flux.