Skype with both system and microphone audio in El Capitan I'm trying to use Skype for screen sharing with simultaneous audio from my microphone and the Mac system (for example a video or a game). 

Using Soundflower, and in the Audio Midi Setup an Aggregate Device for input and a Multi-Output Device for output I've been able to get either Mac system audio or microphone (voice), but not both. 

In some settings, both seem to be input, but only the system audio is output, or just a very quick bit of voice can be heard before cutting out.

I'm stumped...

Here are the Skype audio settings:


And here are the Mac settings:

First, Audio Midi Setup




And Sound from System Preferences



I have found some videos on YouTube that discuss this, like this one which I've followed, but still no luck. 

Thanks. Any help is truly appreciated!
I have just done this - for skype recording and it works:
My settings are almost identical to yours except: -

in skype I have the microphone as my mic - not as the aggregate device.

I have also added my headphones (!) as part of the multi output device. ie headphones + built in + soundflower (2 chan)

I can now record the entire skype video + audio + the mic input from my end using Quicktime screen recording with the mic input set to the aggregate device...

nb - no "flowerbed" used, no "line-in" used