Jimmy,
What’s your routine? I’ve never had that many red spots and I have given myself a few very intense sessions in an attempt to pick up lost gains. For me, I’ll accept a few red spots as being fine. If I get several, I usually skip a day and take it easy for the rest of the week.
Does your penis feel like it has been over-worked? Maybe your problem isn’t the intensity with which you are applying your techniques, but the way you are griping your penis. You may be holding it in a way that is causing your skin to bunch up in specific areas and is damaging the fine blood vessels in your skin.
Let’s see what some of the other more knowledgeable guys have to say about this.
"Only enemies speak the truth; friends and lovers lie endlessly, caught in the web of duty". -Roland, in Stephen King's The Last Gunslinger