I’ll chime in here with some first-hand extender experience. I bought an extender from X4labs in June, 2009 (7 months ago). The product is virtually the same thing as the size genetics stretcher mentioned above. I started at 6(NBPEL)x5.5(eg), and the size calculator on the website said I could get to nine inches if used for 1yr. If you dig around for info it suggests that the devise be worn for 10-12hrs per day. After using for a little while and conditioning my unit, I realized that that amount of time was absurd. 4-6hrs was all I could handle, but I knew I was getting a great workout in that amount of time, so I moved forward with leery excitement. For about 4 months I stuck with this routine, and for the last three months I have gone for about two hrs a day under strong tension (well past the spring load capabilities of 1800 grams), with 1-2 days of rest per week. Note: I would not recommend going past tension until you are well into the process and your penis has had time to adjust. I am now 7.25(nbpel)x5.5(eg)! I use nbp measurements because I am very lean so the difference is negligible, and I feel if you (or she) can’t see it shouldn’t really count- no rotten tomatoes please! Point being, by the time my one year anniversary rolls around, I think I will reach the 8in mark, and if I wore it the amount of time suggested (impossible for me), I might very well have been able to reach 9in. Crazy to believe, I know, but it moves none the less. One more note; I jelq 1-2 times per week, and that is my complete PE regimen.