I myself am on week 4 of a modified 5x5, incorperating dips on my second day. My 5x5 is sport specific and tailored to my personal needs (where I'm lacking). I bench my first day (tues), then do 5x10 dips on the second (thurs), then back to bench but at about 10% lighter on my third day (sat). I would do weighted dips, but the belt and added weight puts a strain on my low back, I put 2.5's in my pocket at one point, but then I needed more weight... so instead I just increased the reps with each week, now I'm at 5x10, I started at 5x6... seems to be working for me.