MIDI and 2500

I am using a MC 505, and the 2500 is the master, all is working fine.

If I record a sequence in the 2500 from the 505. So I take the (R){Percussion} track from the 505 and trigger it from the 2500. It records fine. BUT what happens when i want to use the same (R) track on the 505, but adjust the eq/etc.

So I have recorded the kick. Eq'd it all fine then i go to record the snare and adjust the eq, but it changes the eq for the kick also {r} track.

Basically what I am asking is there a way to record the midi sequence and "freeze" the settings for that particular sound/track in the 2500, then change track on 2500 record the same track on 505 with a fresh eq.

I know some answers are going to be "sample", just looking for a time saver.

record kick and snare on seperate tracks ?

this stupid 505 uses the first track as (R) Rythym. i can not load the rythym drum kit from another of the 8 track on the 505. only limited instruments like snare and 4 types.

the (R) track is what i need twice without 2 machines