Go to www.quilterstv.com and click under Quilters Cafe and see if my video on bindings is showing. Easy technique.
Uses no tools or gadgets to get good bindings.
My advice is if you are having problems then rip out and look for the problem so yu can fix it.
Good bindings are:
1. Seams consistent and even
2. Binding full
3. Good mitred corners
4. If using patterned fabric then fussy cut to take advantage of the the pattern in the fabric
5 If binding curves then cut binding on the bias