I was also considering Gel but the high price tag and low benefit rate vs injection really pushed me to do the injection route. I was also concerned about mood stabilization and energy peaks and drops so I talked to my doctor and told her I wanted to do once a week. I feel really satisfied knowing that there is a good stable level in my body that never gets TOO low or TOO high. Somewhere I thought I read that SubQ has a more consistent longterm absorption rate than IM. I went with SubQ partially to make sure T was being consistently leached over the course of the week instead of quickly in the beginning and none by the end of the week.