If you want to try it, you never want to stop after it!!!!! But carefull, you must try first with saline infusion before. The skin need to be stretch before using glucose infusion. I'm sure you want to know why!!! It's just because glucose take double place after few hours than saline and staying to much time at place, and it's not simply to work with big infusion cock or balls. For my part now, i only infuse my cock and not balls.