I do very few mini tummy tucks, and the reason is in the title of my answer. If you are a true candidate for a tummy tuck, doing less than a full, complete tummy tuck incision, muscle tightening, and umbilical transposition will almost always fall short of the patient's expectations, unless they really didn't need a tummy tuck in the first place! Sometimes a doctor tries to "sell" a patient what they "want" rather than be honest and tell them what they need for the best result. Guess who gets the prospective patient's business, and then try to guess why us "real" plastic surgeons are here answering questions on RealSelf from unhappy patients!
Less skin removal equals less of a result, and often the "mini" removal stretches and distorts the belly button and can still leave lateral dog ears (because the surgeon is trying hard to leave the scar short(er) than a "standard" tummy tuck scar, which is longer for a reason--it is NEEDED to remove the full amount of loose skin, expose the abdominal wall so that proper muscle plication can be performed, and a vertical scar avoided (the "old" belly button location should be completely removed, not left as a vertical scar).
If you want or need skin removal to be as complete and thorough as possible, you already know you need a full tummy tuck! Also, it generally costs less to do the correct operation rather than "hoping" a lesser one will do the job and having to take time off work as well as pay for a second operation!