i put in a new pilot bearing durring the off season. i ran two event weekends now and durring the last weekend i had that familiar high speed drivetrain vibration. so i pulled the trans today and the pilot bearing has a ton of slop on the tip of the input shaft. it even has a nice lip on the far inside edge where the input shaft doesnt reach. could a lack of lube cause this? too much lube? i checked the input shaft and i dont feel what i would call "too much" slop. i have tried a roller and a bronze bushing w/ pretty much the same results.

any ideas before i slap a new one in tomorrow?