Or---------------if you have the mechanical skills and tools as I do, do your own major overhaul. I do this every winter. The advantage of doing it yourself is you have the time to go over every single nut, bolt, and part on the bike. My winter full cleaning and overhaul takes place over several days. Not to say a good LBS mechanic wont do a good job, but to make a profit for the shop, he has limited time. OTOH I have the time to examine every single part and poke and prod untill I feel everything is perfect.
With my winter overhaul I have never had a summer riding season break down.