It can be hard to find legitimate suppliers, but here is a list that somebody put together - http://tongkatreviews.wix.com/tongkat-ali-reviews. I've bought from several but settled on www.authentictongkatali.com. Be sure to follow the directions on cycling, and like sela said, it does take a...
You can find a list of reputable sellers here: http://tongkatreviews.wix.com/tongkat-ali-reviews . I have purchased from www.authentictongkatali.com and have noticed increased libido, although its too early to know about growth.
Measure a couple days in a row and take an average if you want precision to find your true starting piont. You'll probably find you may change a little from day to day, or atlest I do. How consistent are your measurements?
LOL "Happy Fathers Day Dad, I exercise my dick a lot to make it bigger so girls scream louder" But seriously, I'm glad I grow up in this day and age with the internet where people like us can come together. There never could have been this kind of community 25 years ago.