Issue with Akai Mpk49 and APC40 midi controls overlapping in Ableton

I have searched akai forums & ableton forums and have found several possible ways of dealing with this. But, not having much success.  Have tweaked the User control scripts a bit, tried locking devices and mapping but I am not getting the desired effect.  This has become important as I am trying to take my rig live.  

Essentially, I Would like to have APC40 control 4-5 tracks of clips & dj effects and have mpk49 control 3-5 tracks with aspects of the soft-synths that they are loaded up with. so when I pull slider1 on the mpk it does not engage the apc.  Hopefully someone has some experience or solution to this

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