Gains are accumulated sessions. Gains are continuous. They don't just show up at once out of the blue. Every time you pump using the 5x5x3 method, you're stressing and breaking the cellular boundary limit each time. If you look at the cells under the microscope, every time the cells stretches two to three times the original size, you get cellular wall breakdown (tissue break down). When the cellular walls stressed or breakdown, caspase activation occurs. This is to rebuild and prevent apoptosis (cell death) as part of the cell survival mechanism.
So, how do you want tackle it? 5x5x3 to reach about 1.5x to 1.75x cell stress, which promotes slow expansion? Or do you want to break the barrier and go for 2x or 3x the cell sizes, break the walls, and force the cells to heal and perform faster growth? This is what you're doing. In either case, the moment you stress or break the cell walls, you want to force the cells to maintain at the largest and most elongated positions possible. This is where the cock rings and post erected inflation is required. The longer period of expansion, the better. Your cell walls rebuild based on the elongated and expanded state you're in. The reason why we said to use it 60 to 90 minutes because the cell rebuilding responses occur within 45 minutes. The the mitochondrial release of polymers to fill in the broken gap to protect the open cells happen at this time to fill in the cellular body to maintain survival sizing.
So, what's the gain size? It's at microsopic level, one cell line at a time. If you have multiple cellular tissue breakdown, you get multiple cell line gains at a time. Imagine adding a quarter thread size gain each time to you perform a few pumping session. Break, form, break form, break form, and so on. Don't bother to measure until around 6 months down the road. You'll se the gain like a revelation.
Now, cement work means just that. When you inflate the penis soft tissue, think of it as a baloon, where the baloon stretches and the external wall became thin and fatigued. By keep on doing lighter expansion set, promoting more blood to deliver nutrients to the stressed cell wall, and over time, the cell walls get stronger and thicker, providing permanent/cemented growth. But don't let up. You still have to keep it maintained or you'll start losing that volume due to atrophy. We age, and so do the cells. You don't use it, you lose it.