Most GA based off NACA-6, or slight derivative of, as NASA did most of the R&D, so saves manufacturers/designers money.
Sure, the overall drag on the aircraft (tiger moth, Pitts Special - both have low lift/drag) will have a great effect. But warrior/C172 etc, overal have around 9-10 L/D, hence similar glide range. In short, if a heavy C172 can make it, a heavy warrior/C152 should as well. If in the Pitts or tiger moth, sure fly closer.
