Hello! Yes, Jonny removed the coil tap and added a momentary kill switch (an Apem 300 Series Momentary Push Button). Plank, Jonny’s tech, never stated whether the Lace Sensor Dually was wired in series or parallel. On a stock Telecaster Plus, the Dually pickup is wired in series for a humbucker configuration, and the coil tap allows the selection of either of the Dually’s coils individually – there is no option to wire the Dually in parallel on the stock guitar.* As such, it seems most likely that Jonny removed the coil tap because he only used the stock, in-series “humbucker” sound. Therefore, on his current guitar, his Lace Sensor Red Dually is most likely wired in series.
This makes sense, given that Jonny’s “bridge tone” is fairly warm, mids-heavy, and high output. A good example of this tone can be heard on live performances of Just, during which Jonny plays both totally clean and heavily distorted parts with the guitar set to the Red Dually bridge pickup. In contrast, the parallel wiring of a dual coil tends to be brighter, thinner, and lower output than the series wiring of the same dual coil – the parallel wiring sounds more like a single coil than a humbucker. Jonny hasn’t used many different guitars, but all of his favorites – his Tele Plus, his Starcaster, and his Les Paul – feature humbuckers. As such, series wiring seems the most appropriate and the most likely wiring for Jonny’s sound.
*On the stock guitar, one can wire the bridge and neck pickups in parallel by setting the three-way selector switch to the center position, but this does not affect the wiring of the Dually pickup itself.

A photo of Jonny’s current No. 1 Tele. The controls on the control plate are, from left to right: a TBX Tone control, a momentary kill switch, a volume control (with the knob removed from the potentiometer), and a three-way pickup selector switch (with a bit of tape instead of the original plastic cap).