Question about Yiddish vowel pronunciation

I'm thinking of using the following pronunciation (using Weinreich's protovowel designations):
A1 = /a/
A2 = /o/
A3 = /o/
E1 = /ɛ/
E2, E3 = /ej/ but /aj/ in Semitic-derived words
E4 = /aj/
E5 = /ɛ/
I1 = /i/
I2, I3 = /i/
I4 = /aj/
O1 = /o/
O2, O3 = /oj/
O4 = /oj/
U1 = /u/
U2, U3 = /u/
U4 = /oj/

I probably shouldn't, huh? Especially since I'm not a native speaker (although it can't be that much different from someone who was brought up saying po-TAY-to choosing to say po-TAH-to instead). I just wanted to pronounce Hebrew words with a צירי with /aj/ without going full-on with the Central/Mideastern pronunciation.