I couldn't find the paper I wanted to link so I found one that explained the changes as scientifically as possible via a quick google search. Just because it wasn't boa specific doesn't mean it didn't apply in general. The 'good' in that article is how they can use the findings for hearth growth in other species, the point I was trying to show was about how rapid organ expansion and contraction may not be good. Need to give the snake's body time to 'rest'. I really wish I could find the write up someone had done about this (which included boas) but I could not find it. Sorry if my information is not helpful to you.
I did mention my other boas and how I feed them and what has worked for me. My oldest boa was euthanized this year as her health was declining, she was 28 years old. My next 2 oldest boas are both 19. Different things work for different people, slow growth and spaced out feedings have worked for me and seem to help the longevity of my snakies.