Question about making girth more round

I have what I would consider a rather different question. I already have great natural erect girth at 6.25”. The problem is that my penis is very oval shaped. I guess what I am saying is that my penis and girth is quite flat and I am wanting to increase the girth on the underside of my unit.

Some people with larger girth actually have what looks like a ‘third chamber’ that runs the length of the underside of the shaft.I hope this makes sense.

Anyway, if there are any suggestions to increase the roundness of my girth or to add girth to the underside I would appreciate it.

The CS along the bottom of the penis is often slightly easier to grow than the CC’s on the sides. Concentrate the pressure on the lower chamber of the penis (CS) when jelqing.

How do you focus on this specific chamber when jelqing? A squeezed “ok” grip covers the whole penis.

If your thumb is underneath, just squeeze slightly more top to bottom than side to side.

Thanks!