The deeper supporting muscles is probably trying to fight to reset your inner penis back to its original curvature. Think of the base muscle tissues where the ligaments anchored to reacted to the deeper workout. Go light with the pull, perform the higher intensity pull you had done to deep that deeper bundled pulled, and then ease up to a lighter pull just to tell the body, "It's okay. It's only a temporary stressing." The body will respond differently when you "warm up", then forced it to cope, and "warm down".
18.8cm is due to the new deep pull sensation you had earlier. No worries. Keep the course.
The deep veins bulge is fluid retention. It happens even to the best of us when the vacuum pressure is higher than normal after the routines. If you have to wrap up the area where the fluid builds up on top of the sleeve point, do it lightly. If you do have a large amount of fluid buildup, wrap instead of using the vacuum cup to keep things elongated.
When you have slow blood flow because of the restriction wrapping or vacuum cup to around 90%, allow the blood to flow for 30 minutes every hour in. So, it's every 30 minutes break, with 5 minutes relax time, to prevent fluid build up. If your restriction blood flow rate is around 80%, you can allow a 30 minute relaxation every 2 hours. At 70%, it's every 3 hours. At 50%, you can go as long as 6 hours.
If you're hanging/pulling at 7 to 9lbs, allow a break every 10 minutes. Why? Because of the pulling tension you're having, with very high compression load against your glans using the wraps, sleeves, and vacuum cup. When I use the vacuum cup to "hang" or have any high traction load at 6lbs or greater, I take break for 3 minutes for every 10 minutes of high traction tension.
