Actually, there is another GScale mode using a steam turbine.
The OO model.
So much better to see the Pennsy one with RC. The LMS one runs superb but the finger control.... I know that there are those in G1 that like to get singed fingers but you cannot get the fine slow speed control with handrokic that you can with RC. This was amply demonstrated by the Pennsy loco gently accelerating and slowly trundling off the TT.Herr Jeggli has since built this -
and this -