You may also have to trim down by a couple of inches, the very outer edge of the conveyor auger flight, right at the outer ends of the flight at both ends. This is to prevent the reel end disc and arms striking the auger flight when you pull the reel right back to just before the reel fingers strike the auger flight. We actually made a mini pickup reel using the standard reel arms and etc but cutting the end discs and the spider arms down [ we just cut the spider arms through and overlapped and welded them together again ] to a diameter where the fingers just cleared the central tube at the top of their rotation. Changed the drive sprocket to give about the same peripheral speed as the standard pickup reel. We could get right back over the cutter bar with the reel and sweep the light crops into the conveyor auger with this set up. Worked well but really spun at speed when motoring along.