Adding slub to the end of cmdline.txt has my pi back up and running like it's old self again.  It's been hashing away without any problems for the last hour or so.  I started playing around with the clock settings and 360mhz was the highest value that my K16's would actually hash at.  What is weird is that at 360mhz they only hash at about half speed.  I get around 2.5 to 2.8 gigahashes at 360mhz.  The highest I can go on mine and still have full speed is 352mhz.  If I change it to 353mhz the hash rate drops dramatically.

Chad