Forrest,
Most bandsaws have wheels that are crowned. For those bandsaws, the blade typically needs to be centered on the upper wheel.
Most more expensive European bandsaws have flat wheels, and, on those saws, most blades are aligned with the gullet resting on the front edge of the wheel. I have read of some who center a narrow blade on their European bandsaw. I hang mine off the front of the wheel.
Using and aligning bandsaws is like a lot of other skills. There is a learning curve. Find different methods, follow each one explicitly and find which one works for you. It will take time.
Ken
So much to learn, so little time.....