These look awesome. I will definitely have to give these a try in a few weeks. Honestly, the Lorei has been a workhorse for me. I added a heated bed and had to replace the fans, but once I got everything working the way I wanted, it has mostly just worked. However, I have have only attempted to print a single 2-color print because I could never quite get the heads aligned properly. This looks like it can solve that problem.