I'm looking in to replacing some stock pickups of an Ibanez RG370DX

Measuring my spacing, it's 50mm (to my eyes)

I was looking at the DiMarzio DP100 Super Distortion. But on most of the sites selling them, they don't tell me the spacing of the pickup.

According to Dimarzios specification sheet on their pickups:

Standard Spacing = 1.915 Inch = 48.6mm
F spacing = 2.01 Inch = 51.05mm

I can't find information on Dimarzios website if the DP100 is Normal or F spaced, or can you purchase both spacings ? ( never modded my guitar so i'm new to pickups ).

Either dimension isn't exact but will this -1.5mm/+1mm spacing make any real difference?