My local pet store did not have any live feeders this week. My sons snake (416gr ball) is due to eat tomorrow or Friday. I thought it was a ok time to try a f/t. I bought a two pack of small rats. They are each about 50 gr. Is that size ok it's a little more than the 10% I've read on here is ideal. Plus any tips that have worked for on trying a f/t. I read a lot and am worried he won't even come put of the hide to see the rat.