Chastity device discussions and reviews discussion

I’m not certain this is the correct forum area, but I’m struggling with my left testicle slipping out. I wear a 44mm ring that fits comfortably overall, yet the left one keeps popping loose, and it’s always just the left side (never the right). I experimented with a smaller 41mm base ring, but found it too painful to tolerate.

Any suggestions would be huge help since this slippage is the final obstacle for me in finding my perfect cage! Thank you.