Hello !
For all those of you Who own a original Roland Tb 303 Will be interessino to know how you integrate it with your Elektron gear…
Thanks
Integrate in what way? 
I sync it up (using either the A4 or the Doepfer MSY2) to midi clock, and off we go!
For extra fun, plug it into external in on any Elektron box, modify the sound that way. Add real time sampling and trickery with MD UW or Octatrack.
I own 2 OT and 1 MnM…I try to integrate it with MnM… but for melodies is better to do it first on the 303… Because once you do a pattern with the MnM and u go in pitch mode with the 303 is very hard to play on the MnM…
Then the other method that I use, as you do already I route the output of the 303 in the OT and play with the effect 