it is true that you will run into emulsion,
BUT if your not in a rush, let the two layers seperate and within 30 minutes or so there should be 2 very distinctive layers.
The first time this was done, a coat hanger was used to stir the emulsion bubbles every 5 minutes or so, and it helped alot in speeding up the process, but otherwise you can just let it sit for little while and when you come back, it should be seperated. In the long run, it will save time and allows easy recycling of non polar, even with the 30 minute wait times. Give it another try and be patient. Use that 30 minutes to clean up shop.
Trust me, this works great.
and if you think about it, it makes alot more sense to use DCM as the freebase sinks to the bottom of basified rxn contents. Where will the DCM migrate once added?? The bottom also! This means you just have to tap off the bottom layer, (then add more dcm for a 2nd collection) by the time the first dcm collection has been distilled, then 2nd collection will be ready to be tapped off and distilled. 2 collections is usually all you need as long as your not skimping on the DCM. If you don't have acess to ample amounts of DCM, then this may not be a good choice for you as you will loose some due to mechanical losses, evaporation, etc.
Good ventilation is a must, and allowing the basified rxn contents to completely cool to room temp before adding the dcm will help conserve the solvent.
Once you do it a few times you'll have a working system down and be thanking the DCM gods.