I used to find MC 'Mark I' [as I call her] and MT annoyingly and confusingly
similar, I agree.
Many so-called 'authoritative' listings like the ones you linked to to the
contrary, they are entirely different.
The quickest ways to tell them apart? Monica T's slightly bushy black
eyebrows and bigger original breasts [see pic 2 in
her gallery here, for
example]. MT was bustier than MC even before the former had her boob-
job [MC pre-op being almost flat-chested].
MT has three large and prominent moles: one on the left side of her neck,
one on the midline of her chest, below and between the breasts; and a
third beneath and to the right of her right breast [this migrated after her
breast-enhancement to now fall directly underneath the breast].
MC had [at least] two enhancements: the first left her about as 'busty' as
MT post-op, the third left her 'way ahead... :- )
Iafd confusingly lists MT as a synonym [correctly] of Monikat and
[incorrectly] as an alias of MC- this probably reflects the degree of
confusion amongst its [mostly US, of course] contributors, and possibly
even of producers ! The titles credited to Monikat are [correctly] all MT's
[where I think I detect the skilled hand of WB at work!]- a very few of the
MC titles may belong to MT, but I doubt it.
I'll cap some MC 'before' pics for the gallery when I get a chance [some
more MT wouldn't hurt, either]....