One possible disadvantage of Honda's Over The Wing Engine is ground clearance when making an unscheduled departure from the runway. This HondaJet skidded off runway in Steamboat Springs, CO. According to the article, the pilot had difficulty braking. Maybe some Castrol SRF and a good set of Brembo pads...? https://www.steamboatpilot.com/news/private-jet-skids-of-runway-at-steamboat-springs-airport/