I have an answer based on personal preference.
Never use the pronunciation as in "base" -- the 'strong' form!
To me it sounds like a second-grader who is just learning how to read.
Nevertheless, you will sometimes hear the news on television read in
this way, depending on who is reading.
![Sad [:(]](/emoticons/emotion-6.gif)
I have to say
that it makes me want to throw a shoe at the TV!
CJ