So I've heard of some who don't call the FBO via UNICOM frequency prior to parking and then I've heard of others who do call the UNICOM frequency. Anyone heard any feedback from FBOs on this? If I'm parking a bigger aircraft I think it would be important to call, but since I'm typically in a 172 or Seminole, I typically just park and it's always worked out fine. Just want to make sure the line service workers don't let out a big sigh every time I do that...