This thread is obviously meant for IMGs, and directed towards 3rd years who haven't yet found EM rotations.
Stay away from Arrowhead. Thats a DO program. Rotating there isn't going to get you an interview. As an IMG, you need interviews and you need to rotate at a residency program that can give you an interview and rank you highly because they know you and know you are a hard worker. That should be your goal. Also, don't even think about booking an EM elective at a hospital that doesn't have an EM residency program involved. Sounds like you are stuck out in California for rotations. SGU doesn't have any other EM programs in California... so you need to look elsewhere.
We have a bunch of residency programs that are in-network and you can consider "home," since you won't have to pay or complete an "out of network" application. Have you thought about NY Methodist, Brooklyn Hospital, Lincoln, Newark Beth Israel, Hackensack, Mercy St Vincent, or St. John?
Need out of network advice? Look through the SGU match list and try to call the programs and see if they take IMGs for rotations.
Personally, I was accepted for rotation at SUNY Upstate, Beth Israel (Manhattan) and UMDNJ-NJMS. Those could be options for you too. Also, don't forget you can get SLORs from Peds EM rotations.
I started my first EM rotation in August, did 3 back to back to back and got enough letters into ERAS by mid October. Maybe my lack of having a complete file early on hurt my chances with some programs but so long as you apply to a bunch of programs you will get some interviews.