It all depends:
Do you believe in aliens? And does Elvis still exist? (Perhaps on an island with JFK? and Hoffa? and the Linberg baby?)
First Shot Drop Off (FSDO) is a problem common to all ramvalves. As the name suggests, it is when the first shot has a low FPS compared to the balance of shots.
There is a variety of reasons that range from reg-creep, to valve choke.
Not really a big deal considering the volume of paint shot these days.
Nick
__________________ www.montneel.com My Myspace nonsense "the evidence strongly suggests that neither Billy nor Adam (Smart Parts) could have invented the electronic paintgun"-Garr M. King, U.S. Judge