I purchased two Ferndowns recently - you can see them in my post
here. The canadian is of recent manufacture, with a nice open draw. It's been an absolutely fantastic smoker for VA's. Phenomenal pipe, no complaints at all. The bulldog was an unsmoked estate with no dating information available. It does seem like a tighter draw than the canadian and it hasn't smoked as well so far. However, I haven't smoked either pipe very much, since (as noted above) they're rather large and impractical for smoking while I'm working. I recently switched the bulldog to VA's from Latakias to see if it favors those blends more. But it's possible that it's just a bit too tight, especially given the fairly large bowl. There's no problem passing a cleaner, though. I absolutely love the shaping and finish, so if it doesn't seem to improve with the VA's I may consider sending it out to get opened up.
So, as with others, something of a mixed bag. The canadian is really, really good though - possibly the finest smoking pipe I own in a collection of Petes, Savinellis, Dunhills, Ashtons, and other notable makes. From what I could see online, there are more complaints about the smoking quality of earlier Ferndowns than more recent ones. So it's possible my two pipes straddle some change in their manufacturing. Or maybe I just got lucky with the canadian. But if you're thinking of trying one out, it may not be a bad idea to stick to new ones from pipes2smoke rather than buy one of uncertain origins from eBay or elsewhere.