FastLED reverse array

#include "FastLED.h"
FASTLED_USING_NAMESPACE

// DEFINITIONS
#define LED_TYPE_4W WS2801
#define CLOCK_PIN 2
#define LED_STRIP_1_PIN 14
#define LED_STRIP_1_NUM 37
#define COLOR_ORDER BGR
#define NUM_LEDS LED_STRIP_1_NUM // +other substrips which I removed from this example

// Define the start (STRIP_x_L) and end (STRIP_x_H) index of each LED substrip
#define STRIP_1_L 0
#define STRIP_1_H (LED_STRIP_1_NUM - 1)

// Generate array of LEDs containing the LEDs of all strips
CRGB leds[NUM_LEDS];

// Initialise all LED substrips.
FastLED.addLeds<LED_TYPE_4W, LED_STRIP_1_PIN, CLOCK_PIN, COLOR_ORDER>(leds, STRIP_1_L, LED_STRIP_1_NUM);

// Reverse some of the substrips
int counter, saver;
for (counter = STRIP_1_L; counter < (STRIP_1_L + LED_STRIP_1_NUM / 2); counter++) {
  saver = leds[counter];
  leds[counter] = leds[STRIP_1_H - counter];
  leds[STRIP_1_H - counter] = saver;
}


// Now I run a dot from leds[0] to leds[end]
for (int dot = 0; dot < NUM_LEDS; dot++) { // red moving dot
  leds[dot] = CRGB::Red;
  FastLED.show();
  leds[dot] = CRGB::Black;
  FastLED.delay(30);  // wait for 30 ms
}
FastLED.show(); // all LEDs black again

// This is the problem, even though I reversed the array. The red dot still start on the side where the LED strip is connected with the // wires. It should start on the opposite side. Please help to fix this!