DURING A SPECIAL EVENT AT A NON TWR ARPT UNICOM; A TEXAN T6 MADE A GAR NEAR A C172 LNDG SINCE THE T6 PLT HAD OVERTAKEN THE C172 IN THE TFC PATTERN. THE C172 PLT COMPLAINED THAT THE T6 CAME OVER HIM DURING LNDG. THE RPTR STATES THAT HE WENT BY TO ONE SIDE OF THE C172 AT 400 FT AGL.

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WHILE CONDUCTING A FLT WITH AN INSTRUCTIONAL PAX AT GALION ARPT (GQQ) AT A FLY-IN EVENT; I PASSED BY ANOTHER LNDG ACFT THAT WAS ON THE LNDG ROLL. THIS ACFT AND UNICOM WERE NOTIFIED OF MY GAR INTENTIONS AND UNICOM OPERATOR ACKNOWLEDGED THIS INTENTION 'CLRING' ME FOR THE GAR MANEUVER. THE PLT OF THE OTHER ACFT EXPRESSED CONCERN OF THIS GAR ACTIVITY DUE TO THE SHADOW OF MY ACFT PASSING HIS FIELD OF VIEW. THIS WAS NOT A DANGEROUS OR NEAR MISS SIT. HOWEVER; THE PLT OF THE C172 SEEMED EMOTIONAL ABOUT THE SIT AND EXAGGERATED THE SEVERITY OF THE SAFETY FACTOR. HE DID NOT HEAR THE UNICOM COM WHICH COULD HAVE PROVIDED ADVANCE UNDERSTANDING OF THE GAR PLAN. THE UNICOM OPERATOR WHO WAS DIRECTING TFC DURING THE EVENT CONFIRMED THAT THERE WAS NO CONFLICT. THIS SIT WAS PRECIPITATED BY THE LACK OF USE OF A STANDARD TFC PATTERN BY THE C172 WHEN ENTERING THE L-HAND PATTERN ON AN EXTENDED (5 MI) BASE LEG; CUTTING IN FRONT OF THE AT6G WHICH WAS ON DOWNWIND AT 130 MPH AND FLIES BASE AND FINAL AT 100 MPH AND 90 MPH RESPECTIVELY WHILE THE C172 FLIES THESE SEGMENTS AT 70 MPH; THEREBY CAUSING THE AT6G TO OVERTAKE THE C172 AT ITS POINT OF TOUCHDOWN. THE AT6G PASSED THE C172 400 FT TO ITS L (LNDG ON RWY 5) AND 400 FT AGL WELL CLR OF THE LNDG TFC. THE PLT OF THE C172 CLAIMED THAT THE AT6G FLEW 'OVER' HIS ACFT ON THE GAR WHICH WAS NOT TRUE.