  We model the (holographic) QCD Pomeron as a long and stretched (fixed impact
parameter) transverse quantum string in flat $D_\perp=3$ dimensions. After
discretizing the string in $N$ string bits, we analyze its length, mass and
spatial distribution for large $N$ or low-x ($x=1/N$), and away from its
Hagedorn point. The string bit distribution shows sizable asymmetries in the
transverse plane that may translate to azimuthal asymmetries in primordial
particle production in the Pomeron kinematics, and the flow moments in minimum
bias $pp$ and $pA$ events. At moderately low-x and relatively small string
self-interactions $g_s\approx \alpha_s$ (the gauge coupling), a pre-saturation
phase is identified whereby the string transverse area undergoes a sharp
transition from a large diffusive growth to a small fixed size area set by few
string lengths $l_s$. For lower values of $x$ the transverse string bit density
is shown to increase as $1/x$ before saturating at the Bekenstein bound of one
bit per Planck area with the Planck length $l_P/l_s\approx \alpha_s^{2/3}$. We
argue that the effects of the AdS$_5$ curvature on the interacting string maybe
estimated using an effective transverse dimension between the interacting
string bits. The result is a smoother transition with a transverse string bit
density increasing as $1/x^{0.31}$.
