So i'm using the [words=http://www.mattersofsize.com/forum/showthread.php?83577-Length-master-official-order-thread-now-shipping-06-16-2014!!!]lengthmaster[/words] multiple times a day and going really hard. About a year ago i did frenulum tying/cutting so there's a tiny bit of scarring right at he end of the glans. After i do the [words=http://www.mattersofsize.com/forum/showthread.php?83577-Length-master-official-order-thread-now-shipping-06-16-2014!!!]length master[/words] this area goes purple/black and then fades back to normal after a while. I know i can prevent this from working less, but does anyone know the biological process of this/potential damages?