It's not just subtractive - it also supports unions and intersections. The difference is that it's all live. Move things around in real time and watch the geometry dance. :)
What's your take on Modo Meshfusion? Are there any other program out there that offer subtractive editing? From what i understand it's not possible within ZBrush is it?
thanks for the twitch link, very useful and informative videos. bad for me twitch is buffering very slowly, but it's very nice process you got, especially with boolean subtractions form low poly. I'm working in 3ds max so it's kind of awesomes my eyes are crying. how you're texturing your low polys? you're unique uving it…