I've done this, with no landing gear joy. Adjustable Landing Gear (v1.0.4), and the latest Firespitter.dll (6.3.5) installed. Gear still drops through the runway. I've done it successfully on another computer with similar/better specs, but I don't have access to that one right now. I do seem to recall that the gear's right-click menu in the SPH was much longer (more options) once I got things working properly. Am I missing something?