How to prevent sending MIDI CC messages on loading the Max for Live device

I'm developing Max for Live device for controlling my pedals with MIDI control messages. I use "ctlout" for CC and "midiformat" for PGM. The problem is that when I load the device (or its preset) in Live, it will fire a bunch of MIDI messages, which is not always a desired behavior. What's the best practice to prevent sending some MIDI messages on loading the device? I had some luck with "change 0" command, but it's not exactly what I'm looking for. "Initial enable" checkboxes are off.