Om pretty much ok with the std suggested pressure's..

give or take a LB I have been known to put 44 in the rear to cope with the misses on the back
(tends to stop the center wearing quite as wide a flat spot on longer runs ..) but even then, I would only bump it up if the run occurs at the same time as my monthly look see at the air in the tire's ..

but .. yer om slack with my pressures as a whole...
I am lucky to check mine once every mth and that's on a good mth !! .... LOL

BTW- to answer your question ...IMO most tires are very similar as far as the pressure's go..
Different peeps have there own idea of what feels the best and I think that would be the only reason for varying away from the std ..

 

I have always run about 40 psi, but I was viewing a Boss Hoss Youtube video and it contradicted the way I always thought was right. The video was by Boss Hoss and it was about test riding the Boss Hoss. The video went through a pretest ride inspection. The tire manufacturer said the tire pressure should be 42 psi, BUT Boss Hoss said that the tire needed to be at 51/52 psi. Their reason was the front end weight of the Boss Hoss 502 beast....
I have seen car/motorcycle manufacturer recommendations that are different from the printed tire manufacturer's psi recommendation. Never understood why they were different, except I thought that the vehicle manufacturer had different tires on originally. Well, the reason is weight distribution (IE: Steve doubling up with the misses and more rear tire psi). So, Red (you Red Headed **** drinker!), the psi that is run in the tires has a lot to do with weight distribution and tire size, but on a replacement tire, I would go with the tire manufacturer's recommendation (usually 36/42). Here is the Boss Hoss 502 video with the manufacturer's recommendation on psi being used because a 42 psi would make the front tire "cup" with only 42 psi - interesting... http://www.youtube.com/watch?v=OEOWihCbJvk
You learn something everyday.