I have been noticing a ton of disk access at around 12:30 to 1:00 CST on my machine. I have tried removing my Spotlight volumes with Spotless and even disabling Spotlight with it. It doesn't seem to help at all. I took a look at the periodic files and those are all set to run at 3:45 AM so it isn't looking like any of those. I am at a loss at what it could be. What ever it is, doesn't use much of my CPU. It is all disk access. I can not swear to it, but I think it started happening when I removed Blue Harvest. I am wondering if there could be anything left over from that. Let me know what else I can provide to help troubleshoot this issue.