Curved straight lines - Create a drawing line/guide and as you draw on it, you can use your grabbing button to rotate it as you draw, this helps to make for very smooth lines in a curvature fashion.
Manipulate Paste Sizes - Whatever size the selection brush is when you finish your selection and let go of the trigger is the “gauge” for your paste size. Ie. if your selection brush size is Max when you finish selecting your pasting model can only be same or smaller. So I often have the brush on Max size and before letting go of the trigger move the brush size to the middle so when I paste I can have both options to make bigger or smaller.
Unfortunate Reflection -The mirror tool will re-center every load so if you are using it off center be certain you are finished when you quit.