For some good information, go to the pages below and see what Lotus wrote. Hope this helps.
https://www.breastnexum.com/showthread.php?tid=31791
https://www.breastnexum.com/showthread.php?tid=31791&pid=232251#pid232251
https://www.breastnexum.com/showthread.php?tid=31791
https://www.breastnexum.com/showthread.php?tid=31791
https://www.breastnexum.com/showthread.php?tid=31791&pid=232251#pid232251
https://www.breastnexum.com/showthread.php?tid=31791

