We have a CTC dual-extruder printer , model-05204,
and have been trying different host-slicer software, to determine best to use.

First used Makerbot-2.4 then upgraded to version 3.7, and found a problem with it.
When printing objects with large-area first layers, it does Not print all of first layers before going to other layers.
I call it a Stair-step effect, (may could be called a Z-offset problem)
It seems like slicer is Not allocating enough memory for each layer ??

Next tried Replicator-G , it does not have the Stair-step problem,
but is more difficult to do settings and to use, and does Not have as many options.

So went looking and borrowed Simplify3D , it is great to setup and use,
but when we changed Temp. to extruders, the software settings changed and saved,
but changes were Not sent to printer when print started, stayed stuck at 230C.
I think it's a software to firmware compatibility problem ??

Others we tried are Not compatible and will not send data to printer thru USB-cable.

So, I hope someone Here has used Other good host-slicer software, with CTC, that would be better and problem free ?
Any suggestions about how to solve the Markerbot or Simplifiy3D problem, would be appreciated ?