A touch-up is a "softer" way of saying "minor revision" or a "minor aesthetic improvement." This is inevitable for all fillers, irrespective of Doctor or Filler-type (which is why anyone who intends on getting girth injections ought to plan for two travels at minimum).
By minor revision, I mean to say are correcting areas of the shaft (typically using small amounts of filler) to improve contour, symmetry, and/or taper (shape).
If you intend on going in for
pure girth, you'll want to communicate that with them so they understand it isn't merely a "Touch-Up." I should note however, they may insist on a touch-up first before additional girth at a later time, and this has nothing to do with "generating more revenue." Often times, if an aesthetic issue isn't corrected when discovered, the addition of filler for the purposes of strictly girth may only exacerbate that aesthetic irregularity, making it even more difficult to resolve in the future.
@EZdoesit
I'm assuming the "55cc's" in your post was a typo, since you originally typed 5 cc's, correct?
Without seeing a current picture of your shaft and what areas need improvement, it's hard to say if 5cc's will be adequate. I will say however, they are in the business of having happy customers and can conceivably inject a bit more if it means a satisfactory revision. If they said 5cc's based on pictures you sent them, I'm of high confidence they are pretty spot-on (they've been doing these "touch-ups" for at least 15 years with respect to the penis).