Hey guys, love the discussion. I too wish I could change frequencies on my ZZ. I'm familiar with 27Mhz R/C in larger scale, switch crystals and go, but I would love to see this in small scale. I know yoykmo has the Puchi Maru that works on all 6 "Standard" 27Mhz Freqs, but it looks like its board is larger, and I think they make 6 different receiver boards. I don't know how much it would cost, but I would REALLY be interested in a replacement receiver for the ZZ on different freqs, along with a crystal conversion for the trans. RS transmitters DO use crystals don't they? Also would you have to narrow the band on the trans? I'm no electronics genius, but I think I understand a little of what you're talking about. This small scale stuff just blows me away
