You need at least 4 templates exactly like this to make the same shape pot. Because as you keep going on towards the end the small notch at the bottom at the same length of let say 4 or 5 m.m doesn't allow you to make a thicker wall. So you must make a few and reduce the length from 4-5 m M to 3 m.m and 2 m.m and then 1 m.m to allow you to get the desired thickness of the pot wall of let say 15.m.m otherwise you keep going and brushing the template around the cement at the same thickness. This is my problem with getting the thickness of the pot wall I need. I don't know if I have made myself clear. Am I right ?