My male BP is 577 grams and 9 months old as of this week...and ready to take on larger feeders. Layne Labs (the only place I've ordered from, and really like) offers Small Rats at 40-69 grams.

I know some people say a Male BP should never really need anything more than a Small Rat, but does 40 Grams sound too small? The next size up is Small/Mediums at 70-89 grams.

I want to get the small ones and just feed a day or two sooner if needed. BUT what happens if he exceeds 700-1000 grams? Should I stick with the smalls at that stage, or switch to Small/Mediums?

I'd hate to order just 10 rats and pay for all that shipping, so I'd rather get 20-25...but I don't want to order too many too small, or too big.