Early Generation Wild Hybrids

Hey everybody.
I have an F5 Savannah who is pretty freaking wild.
I also have an f1 Jungle Cat hybrid who is THERE as far as being primal.
My f1 jc has a small amount of Bengal and Savannah blood supposedly and my question for f1 and f2 owners is:
Is it normal for her to eat like a pig for 3 to 5 days and then taking a day to eat minimally?
She keeps doing this and the last time I didn't worry so much, because when is not skinny and she is the most active cat I have ever had.
Thanks for any experienced opinions.
The pic is her at 6 weeks old.

Bumping this in the hopes you will get some answers. I have zero experience in this area.

I figured out her feeding, virtually.
I just give her two large meals and one small meal each day.
This has kept her appetite, pretty regular.
Someone gave me hearts and gizzard from Tyson. They weren't organic and they have gizzards, so I g it a bit scared.
My answer was to microwave the guts and then water cool. She loves them!!
I think Jungle Cat hybrids will become very popular, due to,their apparent intelligence and surprisingly gentle.