Just split a poop shoot stl file into two colours with one colour on the left and one on right head - in filament saving mode slicing with prime tower says will take 8hrs 29mins - remove prime tower and says it will take 11hrs 27mins! - what am I missing? Both colours being used are actually in the right nozzle in an AMS. Obviously its suggesting left for one and right for the other which is where the times are from. In convenience modes says 1 day 13 hrs 47mins with tower and 1day 9hrs 20mins without.