Naw you arent the only one that does that, I start out with basic drums to get a groove going, and then add instruments to create a melody, but then i usually add or change the drum sounds until I got a perfect lock sonically. I dont like having to stop the sequencer to browse, load, audition and assign new sounds. Thats why its so hard for me to go back to the MPC, cause before, whatever drums I started with is what I would end up with on the final result, and they werent always the ideal drums. When drum replacement softwares started showing up, it made things a little more flexible for me, but Maschine is like using an MPC+ Drum Replacement program all in one.