In one of my previous marker comparison posts I promised to test my Uni Posca 3M Acrylic Markers. On the top of this chart I made a color chart of each pen color so I had it for easy reference and on the bottom tested four white pens over the Posca markers: Montana White, Molotow White, Signo White Angelic 120, and the Signo White Broad 153. Interestingly enough I had issues with the Montana White producing a consistent opaque line while the Molotow White produced a consistent opaque line although I had problems with the marker working consistently. It was a little temperamental. The Signo White Broad was definitely more consistent than was the Signo Angelic although I was actually pleased with both of these.
I'd say that from these results I would be concerned to use the Montana White and the Molotow White and to expect a good consistent result where line work is concerned. I'd say that I would choose to use my White Gel pens instead if I wanted a good consistent result.
Do any of you have any ideas????? Love to hear them.