No, no special pinnings, I even build with it, well, I always make 2 builds, one the default siduction kde, and then my own, which is nothing special, just apps removed (that I don't ever use ) and apps added that I use (all in debian repo).
I have been doing it this way, building with MM-deb since sidux days (mythtv) and never had a problem. I do remember a problem with ffmpeg once, but that was fixed in under 12 hours.
Maybe I have been lucky, I have never had a problem and I have been using mythtv (repos always enabled) since the beginning and never had a problem, I hear so many "people" say "stay away" from that repo.
I just never had a problem on 4 of my machines.
In the past, I have been bitten by doing a du in X twice, kind of pissed me off at the time
that was early days and I know what to look for so it won't happen again