Jingle...it takes lots of time to bond with some gliders. can depend on how you try to bond, can depend on the gliders personality. So you need to be very patient.
If you have a good roomie cage and good healthy food you are set up for a great beginning. You don't need to be in a hurry to bond.
Cut nailing has ONE key for me. first I need two people, then I need a holding fleece bag (bonding bag will do.) we made one for nail cutting. the hole is to pull a let out with, but I mostly just use the big opening.
So the ONE KEY part. YOU have to take control of the glider!! you can do it without hurting the glider, and his feelings will be fine afterwards!! Pinkie was REALLY GRABBY AND MEAN when we got him, but when i took control and wouldn't let him move, he seemed to calm down and take the cutting just fine. NOT all will do that, some will wiggle and pull.
So you put one glider in the bag, you close the top, give him a chance to relax, some will, then you grab a hold of him, I get finger under and over head so I can stop him from biting. (our bonded gliders will sometimes give a small nip just to let you know they are not happy!) I hold strong enough to stop them from biting me, we do 11 gliders 14 nails 154 cuts. I have NEVER hurt a glider by holding him strong, I pull out a leg, the wife cuts. I either pull out another leg or move him around some and get another strong hold and pull out a leg for the wife to cut. sometimes I get bite but not often.
keep bonding in the tent, BUT get them out of the bag!! lift it upside down and squeeze them gliders out like toothpaste, then sit on the bag so they have to explore. I have some treats available. Let them come to you as much as possible, don't keep pocking your finger in their faces, just put your hand out and let them come sniff your scent. turn out the lights MAKE IT DARK OR DARKER, gliders dont like the light and might not explore if to bright.
Lastly...do NOT worry about the crabbing, its like a dog barking, some gliders crab, some are the bag protector and will crab for the safety of all gliders. we have had scarface awhile now and she will crab if mary starts to crab, mary loves to crab and we have had her awhile.
Connor is our lone glider for now, he come to us SUPER crabber, and lounger and I never gave him a chance to bite me and he didn't, after he relaxes and after many weeks, I started to pet him during treat time, I let him sniff my hand and he has never bit me. I finally got him on my arm to eat a treat and relax a little. but if I talk to him IN POUCH he will give a super crab at me, if I take out pouch and look at him he will crab at me, after I talk to him and he relaxes a little, I slowly get my hand behind his head and pet him, if i move bag to fast he SUPER CRABS again. someday he will slow down and stop, maybe, for now I pet him, he crabs.