Hmmm...I would usually agree with the idea that you could keep on going, but there's a tendency for these "little" spots to turn into some serious and painful bruising. If this is the first time it's happened then I would take a few days and let the spots heal. It's not that you physically can't handle the intensity of the squeeze, but you might consider the staining as well as the problems that you will have for a few days if you do bruise. I have issues with bruising, and I have had issues with bruising up and down my entire shaft essentially the whole time I've been involved with Penis Enlargement. I honestly think that you might want to go back to a jelq based routine for a bit and see if intense jelqs cause problems, and then move to light squeezes. Not only will the progression help you to grow at a steady and consistent rate it will also keep you from being injured and taking long breaks. Also, always and I mean always use a hot-water warmup before a session. This one thing, and I mean HOT water, has kept me from having any serious issues with bruising in the last year or so.