??Distributor shaft depth in oil pump drive??

Ok, I have an unusual question. I'm planning on using a Petronix distributor in my new small block. The oil pump drive shaft bushing is new (MOPAR), the oil pump shaft is brand new (MOPAR). When I install the Petronix distributor it only sits inside the oil pump shaft coupling @.090"
That's not a lot!! So I pulled my MOPAR Performance distributor out of my running 360LA and installed it, and it appears it's depth is the same. I took measurements with the dist shaft sitting crisscrossed on the shaft and measured dist base housing to the engine block. (.090") I also used machinist dye on the bottom of the distributor shafts to get a visual wear pattern. Am I crazy or should this sit deeper inside the oil pump drive shaft. The picture of the dist shaft that looks deeper is the mopar performance unit. It looks deeper because the ends of the shafts are cut differently. The MOPAR and Petronix shaft lengths are the same.

IMG_3016.jpg

IMG_3017.jpg

IMG_3008.jpg

IMG_3014.jpg

IMG_3015.jpg