I concur with Smitty and Ice...if you run your bike under "normal" conditions...follow the regular regimen...synthetic motorcycle oils, filters and such can get expensive if you double the number of changes and really do not need to, modern lubricants, better metals and materials have made the 2,500 to 3,000 mile oil changes with older bikes and technology necessary...really a carryover from days gone by.
Beyond that, follow the more aggressive "rough service schedule if you do excessive short trips, high humidity/cold or parking for long periods outside (sludge buildup due to oil, water and combustion by products which settles to the bottom causing corrosion. And the flip side, running in hot weather, excessive stop and go overheating the oil, or dusty, dirty conditions...! IMHO :s
I do the latter because I do short commutes, 4-5 miles during business week, and mixture of in city and some highway driving on weekends...and the $$$'s are not THAT big a deal to lavish the bike with the best "food" possible...(the performance, comfort, convenience and bling mods are all done already...LOL).
