I have been very impressed with how easy the rafts are to remove with the 0.4mm nozzle. Now I'm printing with the 0.2mm nozzle at 0.07 layer height and the rafts are nearly impossible to remove. I have resorted to carving them off with a xacto knife which isn't very safe with the small parts I'm printing. The base layer does peel right off but it's the rest of the layers that are pretty much welded to the bottom of the part. I've tried different heat settings (warmer and cooler) but that doesn't seem to help.
Personally, even with the 0.4 nozzle it's super hard to remove. I'll try to print at 200 instead of 210 and see how it goes.
I was printing at 210 and tried 205 but then I had issues with the extruder stalling out.
It definately has something to do with the 0.07 layer height. I changed the layer height from 0.07 to 0.1 and the raft pealed right off.
I print with the .2mm nozzle at 200c. The problem is while the raft is printing, it's spitting out so much material that the temp lowers significantly and the extruder will stall off and on. If you can get past the raft to the actual model it will no longer stall. This does suck because they need to updated the raft generation and it's specs sicne we can't control it.