The only remedy, Teresa, is to keep gathering BG data and studying it to see his patterns. Look specifically at those times when he went low to see what dose you gave, what you fed (keep lots of notes!) whether he'd been bouncing a lot before, etc. Once you have learned his typical patterns you can say with more confidence, "If I give ____ units, he (probably) won't drop too low."
Another technique to see what sort of cycle he might have on a given day is to do AMPS, feed, give insulin then do a BG test at +1 and again at +2. If he's staying flat or moving down at those times it can be a signal that he might be ready to have what we call an "active" cycle - ie., one where he might go low and you'll have to test more and also be ready to feed small snacks to "steer" his BG. //// I have been looking at the stories and SS of some of the other kitties. Buddy's dose needs to be upped in order to ever get him down. What Is so weird when I up the dose he goes really high or crashes. When Buddy came home from his surgery, I had decided to up his dose to 3u, because that is what they gave him at the hospital. For some reason did not work as well for me. I am supposed to e-mail his doctor his SS, he had an appointment for a curve, I asked and he said I could do that. Knowing he will want me to do higher units.
A general guideline that can help is that a bounce can last up to 6 cycles on average before it stops. If you think he's in a bounce phase, count how may 12 hour cycles he's been in higher colours and when you reach 6 cycles, be ready for BGs to drop. It doesn't always work but it's something to be aware of.
There's really no way to learn the ropes except through experience of this type. Eventually you'll be able to get a sense of what he might do on a given day and feel more confident leaving the house.