The word "bonded" has about a million different definitions when it comes to gliders. No one can tell you how bonded they are really, but you, and that depends on what your definition of "bonded" is or what you think "bonded" looks like.
I have 9 gliders right now, they are all "bonded" to be me to some degree, the depth is different for each glider, the level is different for each glider. I have a different relationship with each glider, so they "bond" individually at different speeds and depth.
I have some that I can hold, and some that don't like being held, for me, I don't feel that is a gauge for how bonded the glider is, I feel it's an individual preference that the glider has.
I don't think there is a stopping point where a glider is fully bonded. Bonds continue to grow for the lifespan of your relationship with that glider. I believe that it's constantly growing, evolving, expanding.
Prime example, I've had Lemmy for about 3 yrs now, he has never been a bra baby, he usually won't stay in my shirt very long, he comes out and sits on my shoulder until I'm close enough to the cage for him to return to it, again that doesn't mean he isn't bonded, it means he loves being in the cage more than out of it.
But this last year, we have had a medical issue with Lemmy, that's required me to give him medications and baths. Last week, after a bath and dry, He went right into my bra. I was stunned, so was his cage mate who was already in my bra lol she came out and looked at me like wtf is this all about!? Eventually she went back in and tried to find her spot. So I thought well that is weird.....
maybe it was a fluke? 3 days later, we repeat the same thing and again he went right into my bra. Both times he stayed there the entire day until it was feeding time at night which is highly unlike him.
Our relationship has grown, his trust in me has grown and my trust in him has grown. That was a big milestone for him and yeh it surprised me because it was such a huge change for him, one that I never expected from HIM after 3 years.
Even a very bonded glider can get scared at sudden noises, movement etc.. I would say your babies are still learning the rhythm of your house they will settle in and get used to your coming and going.
It sounds like you are one of the fortunate ones, that got gliders that are naturally mellow and accepting of the new human.
It could be because tpg has plenty of people handling and socializing their gliders, could be because you were local to your breeder and the trip to their new home was a stress free uneventful trip, it could be the line they come from is a mellow line of gliders, it could be that you are a calm confident person and the feel that from your energy. It could be all of those or something else entirely.... what ever the reason, it sounds like you are off to a great start!
The only major thing I would suggest, is a bonding bag, and tent time or bathroom time during the day. Night time, they are much more active and less interested in getting to know the human. That is their time to eat play nap.
I think you would find bathtub time more enjoyable during the day, and they would be more interested in exploring YOU rather than just being active in a bigger space.
I would put your shirt on top of the cage instead of inside it, because there is exposed stitching on shirts and it's safer. Or sleep with a piece of fleece for a few nights then put the fleece in the cage.
Personally I don't think feeding meal worms make them stink, if your feeding live ones. There are canned meal worms and they DO stink even in the can. I got a box of canned worms that came with 2 gliders I took in, they went right in the garbage after I opened one
those kind would probably make a glider smell more I don't see how they couldn't it was reallllly strong and gross lol.