Absolutely, that’s the key!
That sounds good, although I am not sure what you mean by “bolused”? You probably mean another bolus at a later time? (that would be fine) For complex meals, I prefer to split carbs entered into Loop into two parts, one with short absorption (for which I give a normal pre-bolus), and one with long absorption for which I let Loop high temp up to my max temp basal setting. This amounts to a “smart” extended bolus. Here is an annotated example of what I did for a pretty large dinner I had last night.
At 5pm I entered 40g of future carbs (at 6pm) with 240min absorption time. Note how Loop immediately saturated to 2.5U/h high temp, which is my usual high temp limit. I’ve found that high pre-temp about an hour ahead works wonders (this is similar to “eating soon” technique of Dana Lewis). At 5:30pm, when I also decided I should have some with roasted vegetables, I entered 40g of future carbs (at 5:45pm) and accepted a 3.5U bolus as a standard 15min pre-bolus. I had the dinner between around 5:45pm and 6:15pm. At 6pm, being aware of (too much) stuff I ate, I bumped up my high-temp limit to 3.5U/h to let Loop be veen more aggressive. Around 7:30pm I had some chocolate and wine for dessert. Glancing at bg and IOB, I decided to just enter 20g of carbs to let Loop know about the dessert but I did not bolus for it at all. In response, Loop continued to high temp. At 8:30pm I noticed bg creeping up a bit so I entered another 15g of long-absorption-time “fake carbs” to let Loop know there is apparently more stuff to be digested. The rest is completely automatic Loop action. This may all sound complicated when you look at the graph and read my description. In real life, with some practice, it’s actually pretty effortless - a few seconds to decide what to do and a few taps on the iPhone Loop app.
The following nighttime graph may also be interesting but for a different reason: a large pressure drop around 3am, followed by somewhat noisy sensor recovery. Loop responded by a low-temp followed by a high temp, which triggered couple of small bg waves. Never exceeded 120, and woke up at 89, so all fine.