[RichardJ]

>>proper adjustment with a brake drum/shoe caliper tool <<

If you are talking about a "resetting tool" , the shoes are probably still too far away from the drums.
You should adjust until the shoes drag and then step on the brake pedal to center the shoes. You have to readjust tighter, press on the brake and check for drag again. The finish adjustment should allow you to hear some drag, but not necessarily feel any resistance when you turn the drum.