weekendrider;
I look at this way. If I go for a 6 hour riding day, my motor will be cold for 2% of the time and hot for 98% of the time. I prefer to have my camchain adjusted for the 98% period rather than the 2% period.
This is just my own method that I developed, because I always try to find the most simple and easiest way to do any job.
If guys are more comfortable doing the adjustment cold, then by all means they should do it that way.
I also listen to my engine when it starts and is cold, and when it is hot. My engine is as quiet as these engines can be, so I believe the cam chain is happy.
Does this work in real life? In July I went for a 5 day trip on my bike. Over 2000 kms, and the engine ran smooth and strong, through the mountains, using 56 mpg or 24 km/litre.