All - I drove my Clarity Touring approx 450 miles today and used HV Charge Mode 2x on the highway during the return when the EV range fell below 10 miles. Note - It was pouring rain on the return as well! Overall the Clarity was great for a road trip and with the exception of lackluster windshield wipers that others have noted the Clarity handled the rain really well! I have a few observations as well as practical questions to more experienced owners on its usage Observations: 1. Fuel economy understandably suffers when using HV Charge Mode. Traveling 65-70mph, my instantaneous mileage (as measured by Clarity's onboard computer) dropped from approx 40mpg when using HV Charge mode only to under 30mpg when using HV Charge mode. 2.) It takes 2-3 minutes once HV Charge Mode is engaged to actually start charging the battery. 3.) It took approx 50 miles running the Clarity in HV Charge Mode to increase the EV range battery from approx 10 miles to 26 (where it automatically stops charging at the 58% HV Charge mode max. Questions: 1.) Could bad weather like I experienced on my return today impact the overall efficiency of using HV Charge Mode? I don't see why it would but thought I should ask 2.) Assuming one does not have to worry about substantial climbing substantial mountains during a long trip, can you just try to keep the Clarity with 5-10 EV miles in reserve and just run it in HV mode? Given the fuel economy penalty, I am questioning if I should continue using it.... As always, thank you for your review, reply, and feedback!