Keep on trucking and don't worry about the "correct" way. My mom recently bound a quilt for a friend of mine and did it the way you do. She did that mainly because my friend wanted extra large binding but wanted it small on the back (like normal) and large on the front so that it really looked almost like an extra border. I have to say it came out really cool on that quilt. If you are going your binding by hand one side is hand stitched - does it really matter which side that is - I say NO.