Yeah, good mostly. We're pretty much on 2 naps now as long as he sleeps in ok and has 2 decent naps. It's still a bit hairy if he has a short nap or wakes early but that's the nature of nap dropping isn't it? We're up to 2hr 50/55 A time in the morning and 2hr 45 in the afternoon and are generally getting 1hr 20-30 minute naps from that. The morning one is generally the shorter one so I'm slowly working on increasing that A time til we consistently get a 1.5 hr nap. He always does a longer nap the first day I increase A times then shortens it again slightly the next day. I'm not worried about it though - we'll get there. And he's settling fantastically for bed too which was our original problem, so that's sorted.
So so nice to finally have a routine that works most of the time at last!
Thanks again for all your help x