Since I am about ready to re-set up my tank again, with ADA Aquasoil as the substrate, and I want to try dry starting the carpet plants, I have been doing more research. My once favorite plant for this was Marsilea minuta, but then I read that the emersed version is often much different from the submersed version, making it a poor dry start candidate. Other plants I thought might work, had similar problems. In fact I ended up thinking that only HC, glosso, dwarf hairgrass, and possibly a couple more, would be expected to do well with a dry start. I now think I will use Sagitaria subulata, and a submersed start. Of course, tomorrow is another day!