RE: Twin Lizzie Build
Here's the problem with grass, It will make you lazy !!!! grass is much easier, for full size as well as the wheels will "slide" on the grass instead of like hard surface which will grip the wheel.
I flew off grass for a few years prior to the field I am at know, It took me several days to get my "Taildragger" chops back up to speed
Denis
dirt as allows the wheels to slide
Denis