I have 9 currently all on F/T. It takes some time to know your animals, and as Waltah said keep feed records. Once you get to know them a bit better you will realize how they will and will not feed. Then you have a good gauge of how many to thaw. It gets a little tricky if you are feeding multiples to a single snake because some weeks they will take more than one and some they won't.

It is always good to have a garbage can too . My big girl hungrily awaits any left overs.