A PIPER PA28 WAS RELEASED FOR SVC AFTER AN ANNUAL INSPECTION WITH THE STABILIZER TRIM INDICATION AT ZERO AND THE STABILIZER AT FULL NOSE UP.

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RECEIVED AN ANNUAL INSPECTION AT ZZZ FROM FBO DURING THE PRIOR WEEK. OVER $3700 OF INSPECTION/REPAIRS WERE DONE. AS PIC I REALIZE THAT I'M RESPONSIBLE FOR GIVING THE ACFT A VERY THOROUGH PREFLT INSPECTION AFTER AN ANNUAL. A LOT OF PARTS WERE TAKEN OFF AND PUT BACK ON. SINCE THIS WAS MY FIRST ANNUAL AS AN ACFT OWNER I WAS NOT SURE WHAT TO EXPECT. SO I GOT MY CHKLIST OUT AND LOOKED OVER EVERY INCH OF THE ACFT; INCLUDING GETTING ON MY HANDS AND KNEES TO LOOK UNDER THE ACFT. AS I WORKED MY WAY AROUND TO THE STABILATOR I VERY CASUALLY TOOK NOTE THAT THE STABILATOR TRIM SEEMED A LITTLE ODD. IT LOOKED TO BE TRIMMED TOO FAR ONE DIRECTION EVEN THOUGH THE SETTING IN THE CABIN LOOKED LIKE IT WAS SET TO NEUTRAL. HOWEVER; I DID NOT EXPLORE IT FURTHER. I FINISHED THE PREFLT AND STARTED THE ACFT. I TAXIED TO THE END OF THE TXWY AND DID MY RUN-UP. EVERYTHING LOOKED GREAT. I ANNOUNCED MY DEP ON THE CTAF AND TAXIED INTO POS. STANDING ON THE BRAKES; I PWRED UP TO TKOF PWR AND VERIFIED EVERYTHING IN THE GREEN. I LET GO OF THE BRAKES AND BEGAN MY TKOF. AS I WAS ROLLING DOWN THE RWY; I SCANNED THE ENG INSTS TO BE SURE EVERYTHING WAS NORMAL. AS I APCHED ROTATION SPD I NOTICED THAT I WAS ALREADY 10 FT OFF OF THE GND. THIS IS VERY UNUSUAL SINCE THE ACFT USUALLY NEEDS A FIRM TUG ON THE YOKE TO GET IT OFF THE GND. I BEGAN CLBING LIKE A ROCKET AND MY FIRST THOUGHT WAS; 'WOW; THEY REALLY TUNED THIS BABY UP.' BUT I REALIZED THAT THE TRIM WAS SET TO A MAX NOSE UP SETTING EVEN THOUGH THE INDICATOR WAS JUST OFF OF NEUTRAL (NORMAL TKOF SETTING). IT WAS NEARLY IMPOSSIBLE TO PUSH DOWN ON THE YOKE SO I BEGAN TO TRIM AS FAST AS I COULD TO AVOID A POTENTIAL STALL. I AM GLAD THAT THE ARROW DOES NOT STALL EASILY. I GOT THE ACFT UNDER CTL AND FLEW HOME WITHOUT ANY FURTHER INCIDENT. AFTER TALKING TO FBO; I BELIEVE THE MECH TOOK THE COVER OFF OF THE TRIM AND FAILED TO PUT IT BACK PROPERLY AND BENT THE RUDIMENTARY WIRE INDICATOR. THEY FIXED THE PROB AT A LATER DATE. AS PIC; IT IS VERY IMPORTANT TO QUESTION EVERY ODDITY NO MATTER HOW SMALL.