Bartolini mk1 replacement pickups

[Flatwound Funk]

Will pickups with the bartolini p2 shape replace bartolini mk1 pickups with modification to the bass?

[Chrisk-K]

Bartonlini's Web site lists dimensions of their pickups.

[Flatwound Funk]

I know that from the measurements they should fit but im not sure if the screws would line up or if they would sounds good because mk1's are 4 strings and p2 are 5 string but they are the same size