What changes did you make to your diet to increase your bodyweight from 65 to 72? You obviously increased calories, but what approach did you take to do that?
Be careful with this kind of thinking. Make sure that the changes you make are based on the results you see with your own training. Just because something worked for someone else, or didn't work for someone else, doesn't mean you'll have the same experience.
Frankly, I would suggest using Greyskull, and spending your time milking reps in your final set. Greyskull is built around doing 3 sets of 5 for overhead press, bench press, and squats, and 1x5 for deadlifts. On the last set, you do as many reps as you can with that weight.
So, let's say you start with the bar for your overhead presses. The first session, you do 5 reps, rest, 5 reps, rest, and on the last set, you manage to do 13 reps. Things aren't really that heavy, but you just run out of gas.
Next session, you increase the weight, and go 5, 5, 11. Keep doing that, and eventually you'll be doing 5, 5, 5.
Now that you're at 3x5, you need to put in a different kind of effort, because the weights will feel heavier. Keep pushing the 3x5 for as long as you can.
Eventually you won't be able to get all 5 reps in the last set. Stick with it for a few sessions. So maybe you go 5,5,3. Next session, 5,5,4. Next, 5,5,4. Again, 5,5,4.
Ok, so you've hit a small plateau. Nothing to get worried about. This is where the Greyskull "reset" comes in.
Let's say you were at 50kg, so you drop 10% to 45kg. This doesn't mean things get easier. Now, your goal is to get as many reps on your last set as you can squeeze out. This is what will help you grow and build muscle.
So you check your log for what your sets looked like last time you did 45kg, and you see that you did 6 reps on the last set. This time, you need to do AT LEAST 7 reps.
Next session, you add weight so you're at 47.5kg (or so), and you do the same thing. Repeat, repeat.
Each time you move into 3x5 territory, you shoot for a higher peak. The first time your peak was at 50kg, next time, 55kg, next time, 57.5kg.
Every single session, you need to be lifting more weight, or doing more reps with a weight you've lifted before.
You'll need to keep an accurate log to know how much you've lifted. You'll need some place to check to see how many reps you did last time at a given weight.
If you read the Greyskull manual (you can find a copy online on Scribd if you search), you'll see that he also includes a number of "plug-ins" that allow you to tailor additional lifts to your goals; curls, pullups, etc. That way you can get 5 days if you want. Unlike Stronglifts, Greyskull alternates between "strength" and "hypertrophy" approaches in a self-regulating manner.
I think this will fit your goals well.