Emu XL-7 & MP-7 User's Group

hi, i'm new to this group so this is my first post.
i'm having trouble with the volume settings on my XL-7.
sometimes when i switch between patterns, the volume settings for
individual presets change in the mixer.
does anyone know how to resolve this?
i've tried everything and the only solution i've found so far is to
record a controller change right at the beginning of each track.
this can get rather tedious for songs with many different patterns.