SET the cracking pressure?
No.
VERIFY the cracking pressure? Yep. At least within the kind of ranges that are used in these specs. You just have to figure out where the diaphram is in the reg (its usually visible through the front cover)
Will you be EXACT? No. But you don't need to be. If its grossly out of range (or freeflows like a banshee) you will know.
BTW, you and I both know that ADJUSTING the second stage, for single-adjustment regs anyway, is not difficult. Yeah, its faster if you have the inline tool, and its a really bad idea to play with it if you don't understand how it works, but these things are not rocket science.
You can send me whatever you want, but when I bought my first reg from a LDS they did nothing other than assemble it and hand it to me. I watched them put it together. Not only was the cracking pressure and lever adjustment not checked, but they didn't even put an IP gauge on the BC hose! At the time I didn't know what cracking pressure was or how to check or adjust it, but I do now and it definitely wasn't done!
Second, I've now seen SEVERAL regs come from LP. Every single one of them was fine right out of the box and required NOTHING to be adjusted.
Mike, perhaps you individually go through some kind of checklist on a new reg. I can tell you that in my personal experience I've seen it completely blown off in local dive shops and my empirical evidence suggests that while verification is certainly a good idea its hardly necessary, as all of the regs I've seen from LP so far have been in perfectly good (and diveable) condition right out of the box.
I did NOT recommend "just" connecting the hoses. I also recommended checking the reg out of the water, and then in a pool, before you attempt to dive it. If you have access to an IP gauge that's a darn good idea to check too.
If you do all of the above you'll have done far more than my LDS did before handing me my first, locally-bought at their grossly-inflated price, reg.
They did absolutely nothing to earn their premium markup other than screw in the hoses, and I bet the LDS this guy is referring to won't either.