I've been slowly upgrading my backyard test stand to use oxygen and kerosene for about a month and after final exams I started activating the new systems. On 5/4/23 I ran the first gox cold flows and on 5/5/23 I ran kerosene cold flows and attempted a hotfire test which ignited but aborted early. On 5/6/23 I continued attempting hotfires and after several aborts and a couple hours of troubleshooting I got my first full-duration test with no aborts. The average chamber pressure was 37psia. I've become a bit uncertain of my orifice CdAs after analyzing the data but I currently estimate the O/F to be between 2.4 and 2.9.