Also, the TU site says this when I first log in

" TransUnion Credit Monitoring is pleased to feature VantageScore, the only credit score used by all three national credit bureaus. "

So I'm a newbie to all this and confused which source I should use for my scoring. MYFICO says my TU score is "Good" but TU gives me a "D" failing grade.

Both reports have same items.

Which is what and where is which what how huh?