I need some help. I got bored and decided to try my hand at homemade ink just for the hell of it (even though i dont do much tagging indoors). When i saw the 40 pens in 1/2 cup of 91 percent alchohal, i noticed that the amount of ink in each pens was about half of the amount my pens had. So i put 1 cup of alchohal, only 70%, and used 40 pens that seemed to be a substantial amount more actual ink. But not my ink looks just way too thin, almost just like black water. Is that normal? Should i add more pens? Maybe 20 more? Or should i scrap the whole batch and try to find a higher percentage alchohal?