Omniscient, as you seem to have a gift for this kind of game I will apologize for my second post.
As for your original question, I will suggest that the other players in your group expect a pro to have a certain level of talent which, looking at your score history, you exceed. So perhaps they feel cheated in some way by your level of competence, or belittled even.
I'm sure we all like to feel, when in a competition, that we have a fair chance of winning and are competing on a relatively level playing field, but if someone in the group has exemplary skills at your tier then that feeling is undermined and the desire to compete disappears.....followed by the player!
↓↓↓ EDIT: Thanks miffers, I've got to an age now where I'm quite content to admit to my errors. : ) ↓↓↓
EDIT 2:
oneeyedjohn:Yeah Scott top post , says everything I wanted say.
Thank you 1i.