Like others have said the most important thing is that he's eating. He may or may not start to strike his food at some point. I've had a few drop feeders that became strike feeders. I also have one strike feeder that I drop feed because she's crazy at feeding time.
I've handled snakes after 1 or 2 feedings but that's because I sometimes lack patience and discipline. I agree that it's best to wait until they've eaten 3 times for you. The less stress for the snake the better.
Best wishes with the new critter.