[howlgarnish]

Interesting. Now that I think about it, /səˈrinj/ sounds quite American to me, while /ˈsirinj/ is more English?

Also, you characterize the 2nd vowel in "orange" as a schwa, but to many people it's /i/:

https://en.wiktionary.org/wiki/orange#Pronunciation

[grzm]

I just lazily copied and pasted the phonetics from the New Oxford American Dictionary :)

[naniwaduni]

It's generally in the range of /ɪ/~/ɨ/. Descriptions of English regularly conflate the ɪɛʌ with ə as they behave somewhat similarly wrt stress-related sound changes.