Hi, I would like to know how do you guys use to paint the inside of the tubes when the acrylic became translucent after drilling it. I mean, I usually paint them with waterbased acrylic paint, applied with a soft brush, and sometimes I have used synthetic lacquer, but I don´t find any of the two methods appropiate to get the best finish. So, is there any way to do it to get a perfect and uniform layer avoiding the spots that sometimes appear as the result of an uneven layer of paint? Thanks so much in advance