docs: Recommend normal slicer settings in Pressure_Advance.md

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 10 insertions, 1 deletions

diff --git a/docs/Pressure_Advance.md b/docs/Pressure_Advance.md
index 617dfbd7..db7bf668 100644
--- a/docs/Pressure_Advance.md
+++ b/docs/Pressure_Advance.md
@@ -91,12 +91,21 @@ Important Notes
   pressure advance on each printer and with each spool of filament.
 
 * Printing temperature and extrusion rates can impact pressure
-  advance.  Be sure to tune the extruder
+  advance. Be sure to tune the extruder
   [E steps](http://reprap.org/wiki/Triffid_Hunter%27s_Calibration_Guide#E_steps)
   and
   [nozzle temperature](http://reprap.org/wiki/Triffid_Hunter%27s_Calibration_Guide#Nozzle_Temperature)
   prior to tuning pressure advance.
 
+* The test print is designed to run with a high extruder flow rate,
+  but otherwise "normal" slicer settings. A high flow rate is obtained
+  by using a high printing speed (eg, 100mm/s) and a coarse layer
+  height (typically around 75% of the nozzle diameter). Other slicer
+  settings should be similar to their defaults (eg, perimeters of 2 or
+  3 layers, normal retraction amount). It can be useful to set the
+  external perimeter speed to be the same speed as the rest of the
+  print, but it is not a requirement.
+
 * It is common for the test print to show different behavior on each
   corner. Often the slicer will arrange to change layers at one corner
   which can result in that corner being significantly different from