solid and simple program...I've done similar in the past and it worked very well...going to more of a 5x5 program for 2014 as well.
You'll like squatting 3x/week. You'll settle in quickly and the frequency will be beneficial.
Run the Tough Mudder Sep 6, 2014
"Trust the process."
"Just get stronger, you bunch of knuckleheads."
- Steve Shaw, MaB Founder