Okay from my experience:
Shinshu: no real Pure Land,, this world is the Pure Land, Amida is a metaphor for total compassion. No praying to other deities or other practices. Amida already accomplished his vow so there is no need to pray for anything or others, shows a lack of faith. Chanting Nembutsu purely out of gratitude so Shinjin is achieved.
Jodo: real Pure Land , chant lots of Nenbutsu so Amida & Kannon & Daiseishi will come to you on your deathbed. Amida is real & you can pray to him ,Kannon, Jizo , etc & other deities for this worldly help You can chant & transfer merit to help others.. Other practices are fine if they support your main Nenbutsu practice.
Here is the LA Nishi Hongwanji page with explanations & etiquette!http://www.nishihongwanji-la.org/church ... inshu.html
And here is the Jodo Shu LA temple website: http://jodo.dehartbrothers.com/
with service & when to bow.
I'd say go to both & see which feels right for you. If you like PM me & I can tell my friend Lisa at JshuNA to say hi to you. Sorry I don't know anyone at Nishi Hongwanji, but if you go to Japan I do:)
Bother, forgot to mention, I live on the East Coast, otherwise I'd be happy to go with you