It's very brave of you to say this. I wanted to comment before when this was discussed but was not sure how it would be taken. I'm in a SMP taking the first year medical school courses now and I never go to class. However, I arrive at the library by 6am on a typical day, pre-study the printed notes for about an hour per lecture (on average). So I'm not just skimming the notes, but actually learning them and becoming familiar with the terminology. Then I watch the lecture at 1.5-2 speed and supplement my notes with information from the lecture. This takes very little time considering I've already read the notes and know if the professor is mentioning something already written in the notes or something supplementary (which I then write down). Then I review my printed and supplemented written notes from the previous day's lectures and add information from review books. By the weekend, all I have to do is review my notes and study as if I have an exam on Monday even if I don't. This has worked well for me considering the grades I've gotten and 95% of the people I personally know who attended class first semester do not attend anymore.
I used to attend class regularly in my undergrad and graduate courses, but being able to spend time pre-learning and not just skimming the notes allows me to absorb so much more from the lecture than if I were to just go to lecture. Yes, some people find lecture helpful for them but it's definitely the minority in my program and 1st year medical students at my school. One of my closest friends did well attending every lecture during the fall semester (3.0 average - solid grades for medical school courses) and swore by attending every lecture. He decided to change his study habits during spring semester since he was not a morning person and it became tiring to attend every lecture, so he made his own schedule that was somewhat similar to mine. He is shocked that he is not only getting a 3.6 average now, but also has more free time during the day. I've discovered that finding the method of studying that works best for you is very essential in studying for medical school courses and for some people, like me, this does not include attending lectures.