I have never owned a Canadian but have read somewhere...
We can own Canadians? I could use a few to help me in the garden. :wink: Sorry, I couldn't resist.
I believe it was Pipestud who pointed out that the difference a few inches makes on smoke traveling at a high velocity (can't remember the exact speed, but like 100's of MPH) through a tiny tube is insignificant to the temperature of the smoke when it reaches your tongue. I side with that, as I have pipes and churchwardens of various sizes. However, maybe the amount of wood might affect the dryness of the smoke? Just a guess?
In all honesty (with myself) I think that gadgetry and gimmicks in the pipe world have created a thought that the pipe can help overcome poor technique.
I prefer thin bowl walls, and average lengths in my pipes nowadays. This way I can better monitor the heat of the fire in the bowl and keep my tempo and pace in a way that consistently produces my desired temperatures. All attempts at pipe gimmickry in my early days of smoking just kept me smoking with poor technique, IMO. YMMV.
I'm not suggesting that you shouldn't try these pipes, or enjoy them. By all means, go ahead. I only give my response as another way to look at all of this discussion. If you fervently believe that a few inches matter, then it probably does... for you.