I had to send the first one back due to quality problems (see details later). The second one makes me happy: quite hot output, still with the stratocaster bridge sound, no noise. I made a shootout with 7 guitars (mostly with humbuckers), and this pickup won as I needed no EQ to record the Telecaster exactly as it sounds. All amp EQ neutral as well. Tone knob fully open. Pickup measures 73 mm in length as per spec.
The quality issues with the first pickup:
Installation in a Squier Affinity Telecaster. The pickup has a length (as per spec) of 73 mm. It did not fit through the base plate hole of the Affinity - made for 71 mm. The old pickup had 71 mm. I had to increase the hole size. This could well be the fault of Squier... What was clearly Seymour Duncan's fault: The pickup body was not parallel to the two fixation screws. If you are lucky, the pickup fits through the hole, but is at a visible angle to the hole, which looked bad (About 1 mm difference in the screw to metal bar distance). Anyway, in addition to that, the pickup did not produce the sound as it should. About 50 % of the signal strength was missing and the frequencies were too high.
Update after some months: no longer first choice. With the noise, you remove also some high frequencies. Doing so; the guitar fell back behind another guitar with humbuckers - losing the shootout for a song.