My advice is to not get attached to any schedule for feeding your Boa.. Instead, watch how your Boa is growing and developing and feed it more or less according to what you are trying to acheive. Generally speaking more frequent meals, even somewhat small meals, will grow a Boa more rapidly than larger meals less frequently given. That has to do with how much of the snake's own resources have to be committed to producing the proteins and enzymes it uses to digest prey.
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Overall I feed probably 1/2 as much as many Boa keepers and breeders do. Yet the boas here are healthy and give good litters with few problems or complications. How much is that? you might ask.. it varies with each type of boa as well as their age and sex. The best insight I can give you on what I'm suggesting is to show you the condition of a BCC adult female that I consider to be in proper condition.. Here's a pic..
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.. that's a mature female Iquitos Peru redtail born and raised here.
For a male in the same size range that would be somewhat chunky.. This next image is of an 8' male (part of one)..
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.. his body is about twice as tall as it is wide. I hope this info helps!
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Gus
A. Rentfro
RioBravoReptiles.com
www.riobravoreptiles.com
"Quality is not an accident. Perfectly healthy animals are a minimum requirement.. everything else is just salesmanship" gus