My 2.5 month old beardy eats 50 BSFL in one sitting no problem. Then he moves on to medium sized silkworms and eat about 6-10 of those. Then he moves on to butterworms, of which I let him have 2. I check my timer and 52 seconds have passed. Then he looks at me like I am depriving him of food and gives me the stink eye. You get the point. Mind you this is after he has already had 50-70 small dubia for breakfast and greens and silkworms for lunch, etc. My point being that my 11 month old dragon would eat like 1000 BSF in about 1 minute, although they are too small to peak his interest. I recommend adding a variety of insects into your dragons diet. I feed BSFL, dubias, silkworms, hornworms, butterworms and superworms to my 11 month old. Now granted he is picky as all get up and usually zones in on one bug for weeks at a time, I still offer them all. I let my guys eat as much as they can in a 10-15 minute period depending on how greedy they are acting. My 11 month old gets offered bugs once a day right now, but lately he has only been wanting them every other, so soon he will likely be going down to bugs every other day (salad every day). I let him eat whatever he wants from that list of bugs above. He never makes it 15 minutes. My little guy is unstoppable. I'm pretty sure he would eat until he died from overeating so I do cut him off. I don't think you can put them on a bug count. It is my belief that they know what their bodies need and eat accordingly. My 11 month is very responsible with his intake in my opinion. The correct size of bug is nothing bigger than the space between their eyes. This does not apply to soft bodied worms, which can be a little bigger than that (silkworms, hornworms, butterworms). The smaller the bug the more they eat. Too big of bugs can cause serious health problems or death.
Kyle