The way to use my Logic editor is to record tweaks as sysex edits into a
Logic track, just like any other logic editor.  I recommend this
especially with the DFT part of the editor.  I have not tried to save any
edits as a patch - I assume it is possible from the controls of the K5.

The only aspect worthy of note is the vector object used for set harmonic
levels, where you can sweep the ccursor around and change harmonic levels
quickly (rather than selecting one individually and then setting the
level).  Rapid sweeps tend not to be picked up, presumably due to the
amount of data being generated.

The Logic song also contains some incomplete editors for the D110 and the
Quadraverb.  Just to tweak a few important aspects of those units.

It works, though I haven't really used it myself.

This are notes from the author of K5load.iso 

Roger Green.