Of course, Marc, as you know, "bone spurs" are not sharp little projections poking out of your heel. Instead, you have some bony material forming on the heel. And even THAT isn't what hurts. Instead it's a ligament that gets pulled tight by the additional bone. So my initial remark aside, it's possible that another boot may support your foot in a way that's different from the Asolo boots, reducing the ligament inflammation. An after-market insole such as Superfeet ($30; www.rei.com) might also provide better support. And, you may find that over-the-counter painkillers such as Advil and Motrin, acting as an anti-inflammatory, will keep you mobile when on the trail.