“Due to chronic plantar fasciitis (heel spurs) I have to use a certain, very cushioned hiking boot made by Gravity Defyer as a wading boot. These boots have fairly soft rubber soles and the heel has a special cushion underneath. The studs were fairly easy to install, but on the first fishing trip several came out and most others became so deeply embedded into the sole that only 1-2 mm of the stud protruded. I removed those that were left and will try them on another firmer-soled boot later.”