There's a lot of new shit happening on this mapping, so be prepared to spend a lot of time learning all your shit. I will be editing this post as I go through and make everything work, but this new mapping is associated with the 1.7 update, so if anything changes, I'll post it here.

I will try and figure out a good way to explain all the controls. lol. I'll "try".

~~~~ I'm coming across a major bug which is re-mapping two of the controls, so right now while I attempt to fix it, you just need to manually go into the SP-6, re-map Pad 6 (in Bank B) to the third sample slot, as well as re-map Pad 11 in the FX section (again on Bank B) to the second button effect control. ~~~~

::::This mapping requires a bit of knowledge about the Akai MPK25, and how to use its different pad and knob control banks::::

This is how the pads are setup, with 1-3 being at bottom:   10   11   12

                                                                                      7     8     9

                                                                                      4     5     6

                                                                                      1     2     3

The Knobs are set up like so, with 9-12 at bottom:  

1   2   3   4

5   6   7   8

9  10  11 12

Pad Bank A:

Pad 1: Deck 1 Play

Pad 2: Open/Close SP-6 Panel

Pad 3: Deck 2 Play

Pad 4: Deck 1 Sync

Pad 5: Open/Close FX Panel

Pad 6: Deck 2 Sync

Pad 7: Deck 1 Sync Off

Pad 8: Library Scroll Down

Pad 9: Deck 2 Sync Off

Pad 10: Deck 1 Load Track

Pad 11: Library Scroll Up

Pad 12: Deck 2 Load Track

Pad Bank B:

Pad 1: Sample 4 Play

Pad 2: Sample 5 Play

Pad 3: Sample 6 Play

Pad 4: Sample 1 Play

Pad 5: Sample 2 Play

Pad 6: Sample 3 Play

Pad 7: Deck 2 Effect 1 On/Off

Pad 8: Deck 2 Effect 2 On/Off

Pad 9: Deck 2 Effect 3 On/Off

Pad 10: Deck 1 Effect 1 On/Off

Pad 11: Deck 1 Effect 2 On/Off

Pad 12: Deck 1 Effect 3 On/Off

Pad Bank C:

Pad 1: Unused

Pad 2: Deck 1 Hotcue 8

Pad 3: Deck 1 Hotcue 8 Delete

Pad 4: Unused

Pad 5: Deck 1 Hotcue 7

Pad 6: Deck 1 Hotcue 7 Delete

Pad 7: Unused

Pad 8: Deck 1 Hotcue 6

Pad 9: Deck 1 Hotcue 6 Delete

Pad 10: Unused

Pad 11: Deck 1 Hotcue 5

Pad 12: Deck 1 Hotcue 5 Delete

Pad Bank D:

Pad 1: Unused

Pad 2: Deck 2 Hotcue 8

Pad 3: Deck 2 Hotcue 8 Delete

Pad 4: Unused

Pad 5: Deck 2 Hotcue 7

Pad 6: Deck 2 Hotcue 7 Delete

Pad 7: Unused

Pad 8: Deck 2 Hotcue 6

Pad 9: Deck 2 Hotcue 6 Delete

Pad 10: Unused

Pad 11: Deck 2 Hotcue 5

Pad 12: Deck 2 Hotcue 5 Delete

Control Bank 1:

Control 1: Deck 1 Effect 1 Slider

Control 2: Deck 1 Effect 2 Slider

Control 3: Deck 1 Effect 3 Slider

Control 4: Sample 6 Volume

Control 5: Deck 2 Effect 1 Slider

Control 6: Deck 2 Effect 2 Slider

Control 7: Deck 2 Effect 3 Slider

Control 8: Sample 5 Volume

Control 9: Sample 1 Volume

Control 10: Sample 2 Volume

Control 11: Sample 3 Volume

Control 12: Sample 4 Volume

Control Bank 2:

Control 1: Unused

Control 2: Deck 1 Gain Knob ("Fader")

Control 3: Deck 2 Gain Knob ("Fader")

Control 4: Deck 1 Effect Beat Length Slider

Control 5: Unused

Control 6: Unused

Control 7: Unused

Control 8: Deck 2 Effect Beat Length Slider

Control 9: SP-6 Master Volume

Control 10: Unused

Control 11: Unused

Control 12: Unused

If I happen to make any changes, or fixes, or come across any bugs, I'll make sure to add it here