Originally Posted by Snowmum
Plus I seem to have trouble with the spacing of the dots around the edge, so some dots end up bigger than others because i'm having to pipe out more icing to fill in gaps.
I don't know what gaps you are referring to, but I assume you're talking about making a dot border (around the edge?). If so, if you keep the dots the same size all the way around and get back to the beginning with a space (gap?) a little too large or small, I wouldn't worry about having a dot or two that is a different size... if you plan for it to be on the back on the cake, it won't show.
If you're referring to another type of gap, please explain.