🚸 FT Motion M493 report less precision (MarlinFirmware#26643)

Author: narno2202

Marlin/src/gcode/feature/ft_motion/M493.cpp

@@ -79,7 +79,7 @@ void say_shaping() {
       SERIAL_ECHO_TERNARY(dynamic, "X/A ", "base dynamic", "static", " compensator frequency: ");
       SERIAL_ECHO(p_float_t(ftMotion.cfg.baseFreq[X_AXIS], 2), F("Hz"));
       #if HAS_DYNAMIC_FREQ
-        if (dynamic) SERIAL_ECHO(" scaling: ", p_float_t(ftMotion.cfg.dynFreqK[X_AXIS], 8), F("Hz/"), z_based ? F("mm") : F("g"));
+        if (dynamic) SERIAL_ECHO(F(" scaling: "), p_float_t(ftMotion.cfg.dynFreqK[X_AXIS], 2), F("Hz/"), z_based ? F("mm") : F("g"));
       #endif
       SERIAL_EOL();
     #endif
@@ -88,15 +88,18 @@ void say_shaping() {
       SERIAL_ECHO_TERNARY(dynamic, "Y/B ", "base dynamic", "static", " compensator frequency: ");
       SERIAL_ECHO(p_float_t(ftMotion.cfg.baseFreq[Y_AXIS], 2), F(" Hz"));
       #if HAS_DYNAMIC_FREQ
-        if (dynamic) SERIAL_ECHO(F(" scaling: "), p_float_t(ftMotion.cfg.dynFreqK[Y_AXIS], 8), F("Hz/"), z_based ? F("mm") : F("g"));
+        if (dynamic) SERIAL_ECHO(F(" scaling: "), p_float_t(ftMotion.cfg.dynFreqK[Y_AXIS], 2), F("Hz/"), z_based ? F("mm") : F("g"));
       #endif
       SERIAL_EOL();
     #endif
   }
 
   #if HAS_EXTRUDERS
     SERIAL_ECHO_TERNARY(ftMotion.cfg.linearAdvEna, "Linear Advance ", "en", "dis", "abled");
-    SERIAL_ECHOLN(F(". Gain: "), p_float_t(ftMotion.cfg.linearAdvK, 5));
+    if (ftMotion.cfg.linearAdvEna)
+      SERIAL_ECHOLNPGM(". Gain: ", ftMotion.cfg.linearAdvK);
+    else
+      SERIAL_EOL();
   #endif
 }