Maruschke - Does she wake at all? If yes then aim to try a suck feed every feed she's awake. If she's not awake at all, then I would try to wake for a suck feed every feed. The other thing to do is have lots of skin to skin and let her nuzzle. I know you are trying suck feeds with the bottle, but you never know, if booby is in her face she might want a little lick.. Hopefully she may even attach by herself when she's ready..