I've been using these for about a year now, I've also only been using Storm/Roto equipment during this time. If you remember, Storm/Roto equipment is near the top of my list on speed of oil absorption based on what I've seen out of our Detox machine. Since I started using these, I feel that my reaction has held up much longer due to a significant reduction in oil absorption. Comparing the number of games I get in between Detox treatments of my equipment to others equipment who either do not towel their balls off in between shots or who use a regular or microfiber towel, to me the difference is very clear and obvious. These towels remove nearly all or all the oil off the ball. I just tried to Detox a ball of mine that has 100-115 games on it since I drilled it, even though I haven't experienced a loss of reaction out of it. A little wisp came out the very bottom, but that was it. This has been consistent across the board on all of my equipment. On customers' Storm/Roto balls that either don't use a towel or use a different one, it only takes about 40-50 games before they notice a loss in reaction, and the ball needs to be treated.
Based on my experience and "research" over the last year, the Shammy/Wipe-It-Dry pad has a significant effect on preserving ball reaction due to greatly reducing the amount of oil that gets absorbed into the ball. For those of you who are into preventative maintenance, these pads to me are at the very top of the list and I highly recommend them!