She's a beauty! (to you both.....
)
I am also in favour of not over feeding - I think too many people think that bigger is automatically better. In my opinion a largish food animal once a month should be plenty.
I have a different boa species kept in their natural temperatures with all the annual variations as in the wild. They take fairly small food animals (as I don't have access to large ones) every 2 or 3 weeks in summer, and go off feed every winter for 2 or 3 months.
From this I'd extrapolate that once a month or less is about equivalent to a "feed in summer, starve in winter" cycle.