Your explanation of what you were feeding did not sound like a recognised proven diet.
And doesn't seem to follow what I know of as the Dr J-D diet.
Dr. Johnson-Delaney Recommendations
Dr. Cathy Johnson-Delaney is an experienced exotic animal veterinarian and respected author and speaker. Her feeding recommendations are based on studies of the natural diets of sugar gliders designed in consultation with Australian zookeepers and veterinarians. The suggested amounts are per sugar glider, per day, fed in the evening. The amount should be adjusted depending on activity, size, reproduction, etc.
1 Tablespoon Leadbeater's Mix (recipe follows)
1 Tablespoon Zoo quality insectivore diet (e.g. Reliable Protein Products Insectivore Diet) , or insects. If using insects, variety is important (crickets, mealworms, waxworms, moths, spiders, etc), and the insects should be fed high quality food such as commercial cricket food, and dusted with a complete vitamin/mineral supplement.
treat: small amount of fruits, chopped together so the gliders can't just pick out ther favorites.
Leadbeater's Mix Recipe 150 ml Warm water
150 ml Honey
1 Shelled, boiled egg
25 grams high protein baby cereal
1 tsp vitamin/mineral supplement
Mix warm water and honey. Blend egg, then gradually add water/honey mixture. Then blend in vitamin powder until smooth, and then blend in baby cereal until smooth. Keep refrigerated until served. http://exoticpets.about.com/cs/sugar.../sgfeeding.htm
I would ask your breeder how long you are supposed to use Wombaroo for. There is egg in the Leadbeater's mix so are you feeding the half egg you mentioned along with the egg also in the mixture? And are the vitamins not being put in the Leadbeater's mix like it mentions?
You have me confused LOL
As to the tent thing. I would take them in their pouch about an hour or so before they get up usually in to the tent. If you take them in your hands, they might decide to explore before you get them and you don't want to have to chase them down.
Take treats too.