Switchable kick mods include: 
Extended Tune 
Extended Decay 
Pitch 
Drive 
Noise part volume increased - non switchable 

The snare had an overhaul Based on a great sounding 909 snare. This included extending the envelopes for the drum and noise parts and increasing the volume of the noise - None switchable 

Clap: Secondary noise source to eliminate the phasing between the clap and snare - Non switcchable 
Tune - Switchable 

Hi hat Tune - Switchable 

And lastly a switchable full range output added to the master. 

All switchable parts take it back to stock values.

Audio with pictures - https://www.youtube.com/watch?v=OYzfTw2uOW4&feature=youtu.be

E-Licktronic Nava Mods - TR-909 Clone

SERUM114