Is there any consensus in the RV12 community as to whether we should use the hours shown on the Hobbs meter vs. the hours shown on the tach for oil changes and Rotax 100 inspections? Checked mine today and we had 288 hours tach time and 389 hours Hobbs time. We've been doing our oil changes and 100 hours inspections based on Hobbs. Maybe we're spending too much money by not using the tach time?