That's totally fine. If he was going to regurge it would be right away. In the past I had growing juvies that would stuff their mouths with one worm after another, and I would keep dropping them in as long as they were chowing down. Turns out snarfing of phoenix worms is not the best way to go and manners are more appropriate in this situation. Don't stuff your mouth, take a breath between worms, etc. It doesn't sound like Smeagol is a snarfer, so you probably will be fine. I just always give people that advice because it's a bummer to watch your gecko so happily chomping on worms and then all of the sudden...blech.