I'd post this in Arrticles/Diaper Reviews, but apparently, that option was not available to me. So I'll post here. This is still informal and only preliminary.
I had ordered:
Adult Diaper Cover (white, extended size)
https://ecoable.net/youth-teen-adul.....er-no-inserts/
Snap-in Charcoal Bamboo Inserts (3-pack, extended size)
https://ecoable.net/snap-in-charcoa.....n-adult-sizes/
Prefold Inserts (3-pack, extended size)
https://ecoable.net/prefold-inserts.....n-adult-sizes/
After pre-washing them twice, I tried them on one night this week. I decided to see how thick I could go. I tried three pre-fold inserts under the charcoal bamboo insert. Because of the extreme bulk, I had to fold the prefolds two ways instead of three ways. The diaper was still so bulky that there was no way I'd be able to fit my baggy pants over them.
They were okay and did not leak, even when I wet while lying sideways in bed, which was something I could not do with my ABU Simple disposables.
Then today, I decided to really put this diaper through its paces. I wore the diaper with two pre-folds (folded three ways this time) under the charcoal bamboo insert, supported by a onesie, and wore a pair of denim pants over them, one size too large, and then went hiking with a DL friend in the mountains, 30 minutes from my home.
The bulge of the diaper was somewhat noticeable, but I was away from home, were it was extremely unlikely that I'd meet anybody who knew me outside of Narnia (see my Profile). We did meet a few other hikers, but they either didn't notice or didn't say anything, and I didn't care. I had drank a glass of water before I left, and while hiking, continued to drink another two liters of water from my CamelBak water bladder in my backpack.
Walking with a slight waddle along 8.5 miles of hiking trails in the mountains, I wet quite a few times, and was quite soggy by the time we ended the hike, but did not leak. That is, until we sat down at a restaurant for a late lunch/early dinner. Sitting down caused some of the trapped urine to be squeezed out of the charcoal insert. The bottom of my pants ended up slightly damp. Thankfully, there was no noticeable odor, probably due to my urine being clear since all I drank was water.
When I got home, I took off my diaper and discovered that the inserts were completely wet, from front to back. This is something that never happened with my disposable diapers. Only from the front to the lower rear of the disposable diapers ever got wet, but never all the way up to the waist in the back.
I had previously done an all-day outing with another DL friend in my ABU Simple disposable with several boosters, all under my terry-lined diaper cover. That combination absorbed more urine than my cloth diaper today, though still being able to urinate two liters into them without leaking (until I sat down) was impressive and the cloth was fully used.