Becky, we went cold turkey on the nap around 24 mths, she was up singing till 10pm in the cots some nights with only a 45 min nap. We have had to add in the odd car nap or short cot nap from time to time when teething or OT creeps in but usually when I put her in the cot at 1pm she's still singing or playing till 2 and only then passes out....so its not worth it. Car or buggy naps on the go work much better here....
Emma is on the low end of sleep needs anyway - did the 2:1 at 9.5-10mths, dropped the CN very early as well....but like I say, she's one of those who even if low SN during the day, she can usually tag it on. I think she would have slept longer this morning only her brother (who's now caught up on HIS OTness after a 12 hr night night before last and a usual 10.5 or 11 last night) turned on Cbeebies full volume at 7.30am.....
Still working on Oscar at well past 5 in terms of catching up and OTness....gets a bit boring and same old, same old 5 yrs in I tell you ;-)
Hugs and you're doing great!
S x