Replaced the aging Velcro with a small change and it made a huge difference. You can see from my Velcro mod pictures that i use the same Velcro to strap in the penis on the base piece. No matter what shape or size or direction I stick it it wears out quickly and gets pulled off. This time I bought the same Velcro for the strap in piece but bought Velcro with tape on the other side that is twice the width. I used the double width Velcro on the base piece so it would have more surface area to stick to. This has worked extremely well. After hours of using it there is no movement or slipping. This is the best and most secure strap in I've had with the device. The best part is the EQ was through the roof this morning and throughout the night. Having a secure strap in is the first step to getting a good session and this has definitely improved it. As I mentioned before I'm no longer doing locked stretches. I am stretching with 1200g or so of tension over the entire session. This can be several hours to all day on weekends. I am mostly stretching downwards, but have also started working in some straight ahead and upwards stretching for variety. SG is still getting better as I learn how to improve its use.