RE: New ballast system
Its not the English but the vage discription of the aplications and components.
I would have a concern about this:
instead the air inside escapes through a small tube, glued to the bag.
If that bond weakens or cracks there will be an internal leak made worse when trying to surface or diveing.
Still with the bag system the freeboard are is very small.
I would invest a bit more money for better components and have peace of mind!
Buen trabajo pero le falta un poco mas en mi opinion.
David Submarinos De Vida