I'm mainly now using poly carbonate filament (PC) with this printer now and getting quite good results.
I've tweaked settings quite a lot to get good strength and still have good detail on small features.
I found the biggest improvement was to run the extruder fan full time, at 50%. I thought that would negatively effect layer bond strength, but it does not seem to in this printer with it's heated chamber. I've been using 65C on the chamber heating fro PC.
For features requiring 'bridging' I've had the fan at 90% and slowed the print speed down to about 20mm/S to get good strand reliability.
However I'm still finding that Slicer does better bridging than S3D (I compare both regularly).
I'm having some issues on a few prints with a glob of PC falling into the print from the face of the nozzle. PC seems to accumulate there from the small strings left from retraction moves, I didn't notice this with ABS. Other than that, PC has been great material for us, the jump in strength from ABS is around double.