Ma latests prints:
S3D 4.1 Predicted Time: 99 mins
Duet DWC Simulation Predicted time: 125 mins
Real printing time: 128 mins
S3D 4.1 Error: 29,29%
DWC Error: 2,4%
S3D 4.1 Predicted Time: 183 mins
Duet DWC Simulation Predicted time: 254 mins
Real printing time: 257 mins
S3D 4.1 Error: 40,44%
DWC Error: 1,18%
Also GCode Analyser website (http://gcodeanalyser.com/ is always below 5% of error...