JordieC,
Not a great fan of the set rountine. My DD one on 8/3. Has a long morning sleep usually about 10.30 to 12.30. Tend to put her in cot anytime from 10.30. She will get grouchy in afternoon but rarely will she sleep usaully give her a bit of cot time she often won't sleep but just enjoys being in her room and chats away to herself. At night she is off to bed anytime between 630 and 800. I just wait til she peeters out. She wakes up at 7am and you could set the clock by her morning wake-up. She has been like this from about 10 weeks. I never try to make DD sleep if she doesn't settle to sleep we have some cuddle time (Yah!!!) I wonder if you are trying to get your baby to sleep to often. Even at daycare (DD started at 6mth) she only sleeps once in am and then about 20 mins in arvo. Don't know if any of this helps. Good luck at the sleep clinic I have heard they are very good.
Deb