So, I would say the get bigger and leaner at the same time means you need to get on a few things during your blast:
A low to moderate carb diet with high protein and moderate fat intake. For me, this might look like:
100-125g carbs daily
100g fats daily
250-300g protein daily
I weigh 175lbs, btw. I've done this diet 4 times now for contest prep, tapering the carbs downing further as I go. Each cycle, I've ALWAYS burned two lbs of fat for every 1lb of muscle I ADDED and I did this on less than 400mg of gear per week. Truth is, to get a really good blast and cruise, you might need to do something like this.
Blast:
Test-E @250mg/wk for 12 weeks
EQ @ 500mg/wk for 12 weeks
Tren-A @ -175-350mg/wk for first 6 weeks
T3 @ 37.5mcg/day for 12 weeks
Cruise:
Test-E @ 125mg/wk
EQ @ 125mg/wk
During cruise, start eating carbs again, tapering up as you approach 16 weeks of cruising. You'll actually keep filling out, granted, some will be water and some will be fat. I assure you though that a low carb diet on high protein and Tren in the picture will net some crazy results and when you come off, you can chill out a little and eat carbs again and maybe do a bout of cardio here and there to keep lean. This method works, I assure you. There are some other things that can be done as tricks to enhance results but honestly they just make the method too complicated to spell out on a forum.