Breeder Female Prey Size

I feed smaller preys weekly about 85/100 grams even to my 3000 grams girls.

Now that's the feeding throughout most of the year when breeding season approaches I do some heavy feeding I feed the same size but every 5 days starting in September up until they go off feed, ovulate, or march (which ever come first)

I agree with those saying it depends on the size of the female. I have two normal girls that both exceed 3300 grams, and both of those girls are on large rats. My smaller breeder girls are on mediums rats year round. If your girl is 1700 grams, I'd stick to the mediums. If you don't cool your snakes (I don't, and they breed and subsequently lay eggs in the spring), you shouldn't have to worry about them getting fat and slugging out. If you do cool your tank(s), stick to a smaller meal.

I had the same question and most breeders I talked to advised to feed small rats (70-100g) every 7 days. Even my 3500g girl gets one small rat a week and that is what her previous owner fed her. She, along with all my other girls, are satisfied and eat every week. I think the 10% rule only applies to babies/juveniles.

So keep them at 80-100 gram rats until they go off feed , if they do at all. Got it.
Is there a reason for this? Been proven that larger prey causes fat lazy snakes or slug throwing?