I had a 2.5 month layoff and just got back on the iron, had 2 workouts.
One thing I learned from this is that IF YOU BUILD QUALITY NATURAL MUSCLE, YOU KEEP IT EVEN DURING LONG LAYOFFS.
My first workout was chest and shoulders. I was looking flat and feeling weak after 2.5 months off. But once I did a couple warm up sets I realized I had barely lost and strength, maybe a 5% strength loss.
After that workout I had an awesome pump and my body just seemed to bounce right back to where it was 3 months ago. My body felt so flat before the workout, but after the workout it's like I awoke the great sleeping giant and he was back in full force.
Then I trained back and biceps next time. I lost maybe 5-10% strength in my back, no big deal. My biceps seem stronger than ever though, after a couple warmup sets of curls I realized my curl is the same as it always was. And looking in the mirror, I look fucking awesome. Fucking badass.
During my 2.5 months off I burned off a lot of fat. Lost about 10 pounds. So now i'm in lean mode, lean, vascular, abs, muscles, winning.
It's great being naturally pimpin' like me. I bet you wish you were me.