Are all forum recommended surgeons capable of performing a second procedure to increase density?

[Matthias]

Dear all,

I came across some surgical approaches where certain surgeons prefer to give the frontal half full density in an initial procedure and do the second half or remainder in another procedure later.

Many clinics, especially those offering megasessions, aim to give full coverage on the first pass though, which limits the feasible density. A second pass may be desired by many patients to increase density. It is even a frequent saying here that for most patients with advanced baldness, at least two procedures are required.

Are those surgeons who prefer to split the procedures according to the coverage (especially the forum recommended ones) capable of performing a second procedure focusing on increasing density on patients who already had been given full coverage with basic density in an initial procedure (Needless to say, without causing any harm to the previously transplanted hair)? Or does this require special techniques that not all surgeons practice?