I know the positive and negative side of the tube. In the tube, it appears huge, but it's a great vantage oversight of what to come. At 10 inHg, you're literally seeing hte 1.5 to 1.75 times the expansion that you will achieve in the future.
Then, when you release the pressure, that momentary disappointment of, "Hey, mind staying that size permanently?!" Using the Bathmate, I could see the 5in girth to 5.25in girth within the first pumping session without fluid retention, and fast forward 3 months later, the 5.25in became 5.55in girth without fluid retention. The girth remained for a few hours without a cock ring, and the pleasures for her and me are phenomenal. It's something to look forward to permanently. But at 6in girth even after pumping without fluid retention, I'll get there. I can say that I'm jealous with brothers already at the 6in girth level. Their ladies must be over the moon.