Under the Details tab of our change form we have the two fields: Initial Assessment (text 4000) Notes (text 4000)
Even if these two fields have the same amount of possible text input the first one takes up almost the whole form while the notes is at the bottom showing only 3-4 lines at once before you have to scroll.
Hi We can not control the size a field takes on form. But I have seen that some time dropping a different field in between helps in equally distributing space. For example try placing a short text field in between. It may help..