Hi Mauro,
It would be interesting to compare this to what you actually do with a golf ball. The reason I say that is that this swing wouldn't work with a driver with a golf ball. The ball would barely get off the ground and go straight right. As you'll see in the impact position, that's a lot of shaft lean and would leave you with no loft. Also the face is open.
When looking at more distance, I always attack it by trying to optimize launch/spin first. If that is already maxed out, then I look at adding speed. Often times, getting more consistent with face and path results in an initial gain in distance that's easier than trying to change sequencing and add speed.
If you did want to go the speed route, then I'd look at transition and getting the hips more involved as well as creating less upper body sway in the backswing. But I'd be really curious to see what actually changes when a ball is in the equation.
Tyler