In the efforts of full disclosure, I am a recent St. Mary's resident. there is a lot of just plain wrong information on this post. St Mary's, over the last three years has undergone an enormous 180. There are aspects of it which are cush - i.e. the 4 months at st marys, the fact that the attendings are not dicks, but I would not call it laid back, non academic etc. You have clearly spent no time there.
First, the operative experience in all aspects is solid. Tons of joints, sports,spine (though there is a fellow),phenomenal hand, considerable onc at kaiser, tons of both hot and cold trauma. the peds is the same as Davis and UCSF.
The academics/didactics has totally changes. It is now a purely attending run show in the mornings one day a week. The research has teamed up with UCSF. Per resident, we are putting out almost three papers per resident over 5 years, and it is growing. There are a lot of opportunities.
The clinic expereince at Highland/kaiser is great. A bit weak at St mary's but very informative to learn from attendings. At the other places you run your own show. The residents get fantastic fellowships and are very well respected wherever they go for their operative skills.
the probation issue is no longer an issue as the program received full accredation after their latest review in light of all these attendings. There are, in total, over 40 attendings you work with. They are fellowship trained in every specialty. Do they have big names...no. Instead of spending their lives inflating their careers, they do solid orthopaedics and then go home and spend time with their families like normal people. They love to teach. Nearly every one of my nearly 2000 cases in residency was either me and an attending or me and another resident. You will really come out a polished orthopaedist when you are done.