Six Pack Abs Update

I'm several days into my new diet and workout plan and unexpected things are happening. The workouts are intense and the long recovery seems to be doing it's job. I've made significant gains in strength in less than a week after being at about the same level for a couple of months. I "look" thinner already, and I can already see a line in my stomach. Much to my surprise when I got on the scale this evening, I gained four pounds! Not the result I was looking for.

I have to conclude that this is gained muscle mass due to my thinner look. I'm going to keep at it despite the result and see what happens in a week or two. At that point I'll decide if this is getting me to my goal.