jack
i have been using borax for over 20 years and have had very few problems. the few times i have had my eggs turn into bb's is when i did not allow them to cure. the eggs actually cure while they are in the refrigerator. it sounds like you left em in the frig long enough. if the eggs are not allowed to cure long enough the outer part of the egg cracks during freezing and drys out in the center causing them to turn into bb's. i cut my eggs into bait size pieces and allow them to dry until tacky. i then put them in a bowl of fresh clean borax and coat them completely. next i fill the bottom of my container with a 1/2 inch layer of borax and place the eggs on the layer. i put another layer of borax and another layer of eggs, and so on and so on. at the top i completeley fill the container to the top with borax. allways use fresh borax to coat and to pack with. if you use the borax you coated the eggs with, to pack the eggs, your gonna have problems. cure the eggs in the frig for at least 2-3 days, and then freeze. anyways i hope this helps.