I tested each tile with a fresh battery I purchased locally. I had to deburr the ID of the holder so my tube would fit. Putting it further from my mouth appears to make this better. I?m so glad I found a shoe brand that caters to my foot size and tastes. I am a casual player, and a small person, not a pro with 6 racquets and 4 changes of clothes. I think this would raise the weight capacity of the bars to a reasonable degree as well as stiffen it up against the steel getting any down bend due to cargo. Delete account, uninstall synapse, then continue to live your life. Total waste of money. My advice to future purchasers would be to test them before depending on them to hold your boat or other item. Never happened after that