All of us have seen this with IMAC before. When I started, a Goldberg Sukhoi was competitive but by the time I quit flying competitively, some basic fliers were using 40% planes! I think it's settled down now with competition planes being in the 150-170 sized engine and knock around planes being 70-100. Maybe jets will settle down the same way over time. There's a sweet spot in the flight characteristics vs lugging the plane around. It should balance out.