When my printer does solid infills it often feels like it is over extruding (plastic bunches up rising above the tip of the nozzle).
However, when measuring the thickness of walls my measurements suggest that it's under extruding (walls slightly thinner than line width). For top layers this often results in a rough solid infill and the occasional gap between infill and walls. In fact, if I dial back flowrate until the solid infills look good I can end up with a flow rate of 85-90% (when measuring my wall thickness would suggest I need ~104%). I do check filament diameter but this happens with many different filaments (and tbh filament diameter consistency seems pretty good these days)
Those gaps can be closed with bigger overlap values but I'm not finding any settings to control either the infill overlap between infill lines for solid infills or just general flow rate for infills or solid infills - modifying these would seem like a simpler option.
Are there any settings like that in Cura I could use to get better control over solid infills? I'm currently using Cura 3.3.0.