Ha, I'll admit the "tiresome" came about when, after doing the Envoy quest, I decided to 15 everything in rapid succession.

That...took a while. I may have overworried that even doing a 5-increment for everything would be similarly long-winded.

Still, I'll see what I can do about the 5-increment plan. (Although I still swear that the real real intent was that no one would actually pursue more than one to three tradeskills so they could focus more on smiting evil...)