No worries! The blade pickups don't have spacing options since it is not necessary (there aren't individual pole-pieces to line up with the strings).
One consideration for your pickup swap is that with only one pot on your guitar, you might want to consider using a 250K pot (or 280K if you buy from BKP), to give the equivalent loading of two 500K pots as is standard for humbuckers. A single 500K pot would be equivalent to using a 1meg volume and tone setup, which makes results in a much peakier resonance in the pickups' high mids when the volume is on full, and a pronounced dulling of the tone as you roll it back. Some players have a preference for this more metallic sound, but nowadays I'm recommending using a 250K pot or 500 with a 500k resistor between live and ground (same loading as a 250K pot when wide open) if you're not specifically after that character.
Ok cool!
I checked my guitar before I left for vacation. It has a single 250K pot so I will probably just keep using that pot. I think I’m pretty sold on BH pickups and more than likely will go with the ceramic version. The Root tele is kinda dark so I think the ceramic will be a good fit.
I’ve tried Dimarzio and Duncan and EMG, so I believe I’m ready to give BKPs a shot.