I also agree that genetics do play an important role in feeding. My original pied project started in 03 with a pair of hets. I've always heard that pieds and het pieds were picky feeders. My pair was proven at 30 months old and the females first clutch was 9 eggs. I held back 1.1 of 4 pied produced in the clutch. This same het female is now the largest ball python I've ever seen in person. She is over 5000 grams and consistently produces 13-15 eggs a year with only ONE slug/unhatched egg in her 6 year breeding history.
The female pied bred for her first time at 2 years old and produced 6 eggs from pied x pied. All of babies I've hatched have been great feeders. The recent pewter pieds we've hatched, which are 90%+ white are also great feeders. All from this year have just about tripled in weight. The only animals I've ever had problems with are pastels. They seem to do great until they hit the 800-1000 gram range.
Again, I stand behind the theory that a line that feeds great will produce offspring that feed great.
Just borrow the thread and ask if you can add/mix anything in their water to increase the appettite? Thx