diff --git a/RiTCh_Lightshow.ino b/RiTCh_Lightshow.ino
index 4b8dff6..c7dbd6c 100644
--- a/RiTCh_Lightshow.ino
+++ b/RiTCh_Lightshow.ino
@@ -17,6 +17,7 @@
 #include "DmxSimple.h"
 #include <EEPROM.h>
 #include "looper.h"
+#include <RGBConverter.h>
 
 #define DEBUG 1
 
@@ -36,8 +37,8 @@
 #define MAX_DMX_SPOTS 2
 
 #define MIN_DMX_FADE_TIME 1
-#define MAX_DMX_FADE_TIME 5
-#define MIN_DMX_HOLD_TIME 3
+#define MAX_DMX_FADE_TIME 3
+#define MIN_DMX_HOLD_TIME 5
 #define MAX_DMX_HOLD_TIME 15
 
 // Arduino pins
@@ -144,7 +145,7 @@ void worker(void) {
       }
       if (diff_counter != 0) {
         // start hold timer
-        spot[s].steps = random(MIN_DMX_HOLD_TIME, MAX_DMX_HOLD_TIME) * 1000 / WORKER_SCHED;
+        spot[s].steps = random(MIN_DMX_HOLD_TIME, MIN_DMX_HOLD_TIME + ((MAX_DMX_HOLD_TIME - MIN_DMX_HOLD_TIME) * poti_level[2] / 255.0)) * 1000 / WORKER_SCHED;
 #ifdef DEBUG
         Serial.print(F("Spot "));
         Serial.print(s, DEC);
@@ -154,9 +155,14 @@ void worker(void) {
 #endif
       } else {
         // new random values
-        spot[s].steps = random(MIN_DMX_FADE_TIME, MAX_DMX_FADE_TIME) * 1000 / WORKER_SCHED;
-        for (uint8_t i = 0; i < spot[s].dmx_type; i++)
-          spot[s].diff[i] = (random(0, 255) - spot[s].values[i]) / spot[s].steps;
+        RGBConverter color_converter;
+        uint8_t rgb[3];
+
+        spot[s].steps = random(MIN_DMX_FADE_TIME, MIN_DMX_FADE_TIME + ((MAX_DMX_FADE_TIME - MIN_DMX_FADE_TIME) * poti_level[1] / 255.0)) * 1000 / WORKER_SCHED;
+        color_converter.hsvToRgb(random(0, 1024) / 1024.0, random(0, 1024) / 1024.0, random(128, 255) / 255.0, rgb);
+        for (uint8_t i = 0; i < 3; i++)
+          spot[s].diff[i] = (rgb[i] - spot[s].values[i]) / spot[s].steps;
+        spot[s].diff[3] = (random(0, 128) - spot[3].values[3]) / 255.0;
 #ifdef DEBUG
         Serial.print(F("Spot "));
         Serial.print(s, DEC);
@@ -168,9 +174,9 @@ void worker(void) {
     } else {
       for (uint8_t i = 0; i < spot[s].dmx_type; i++) {
         spot[s].values[i] += spot[s].diff[i];
-        DmxSimple.write(spot[s].address + i, uint8_t(spot[s].values[i] + 0.5));
+        DmxSimple.write(spot[s].address + i, uint8_t(spot[s].values[i] * poti_level[0] / 255.0 + 0.5));
 #ifdef DEBUG
-        Serial.print(F("Spot "));
+/*        Serial.print(F("Spot "));
         Serial.print(s, DEC);
         Serial.print(F(" color "));
         Serial.print(i, DEC);
@@ -179,7 +185,7 @@ void worker(void) {
         Serial.print(F(" diff "));
         Serial.print(spot[s].diff[i], 4);
         Serial.print(F(" value "));
-        Serial.println(spot[s].values[i], 4);
+        Serial.println(spot[s].values[i], 4);*/
 #endif
       }
     }
@@ -293,6 +299,8 @@ void setup() {
 
   mySoftwareSerial.begin(9600);
 
+  randomSeed(analogRead(A6));
+
   // setup poti pins
   pinMode(POTI1_PIN, INPUT_PULLUP);
   pinMode(POTI2_PIN, INPUT_PULLUP);