Hi @gradyp, your comment inspired me to start a project on my own trying Hard-surface modelling. It is really hard but I have to say that it has really helped in a different sort of way. I have learnt a lot but I also feel I opened a can of worms. I leave the link to my project so you can have a look. All this it’s been on my own. I haven’t taken any specialised tutorials or paid tutorials for this. Hope you like it.
https://cgcookie.com/projects/non-destructive-very-detailed-modeling