Not sure about the pin down technique, although I will carry on until flowering. It definitely requires more practice.
Seems like the plant is willing to live, and the thing is I have only 3 months until my holiday, so there is no time to start over with an another grow.
The genetics in this one isn't the best in my opinion, one stem grows really odd leaves. I will wait a bit more and if the strange shaped leaves are keeping growing, then I will have to cut off that branch.