diff --git a/asibfm700_config.h b/asibfm700_config.h
index f9f698f..0248a23 100644
--- a/asibfm700_config.h
+++ b/asibfm700_config.h
@@ -1,9 +1,10 @@
 #pragma once
 
+#include <filesystem>
+
 
 #include <mcc/mcc_keyvalue.h>
 #include <mcc/mcc_pcm.h>
-#include <filesystem>
 #include "mcc/mcc_pzone.h"
 
 namespace asibfm700
@@ -13,14 +14,14 @@ static constexpr double SAORAS_LATITUDE = 43.646711_degs;
 static constexpr double SAORAS_LONGITUDE = 41.440732_degs;
 
 
-template <mcc::impl::mcc_variant_valid_type_c T>
+template <mcc::impl::mcc_record_value_c T>
 struct config_record_t : mcc::impl::mcc_simple_kv_record_t<T> {
     std::vector<std::string_view> head_comment;
     std::string_view inline_comment;
 };
 
 
-template <mcc::impl::mcc_variant_valid_type_c T>
+template <mcc::impl::mcc_record_value_c T>
 static config_record_t<T> make_config_record(
     std::string_view key,
     T value,
@@ -66,22 +67,23 @@ static auto Asibfm700MountConfigurationDefaults = std::make_tuple(
     // PCM B-spline knots along X-axis (HA-angle or azimuth). By default from 0 to 2*PI radians
     // NOTE: The first and last values are interpretated as border knots!!!
     //       Thus the array length must be equal to or greater than 2!
-    make_config_record("pcmBsplineXknots",
-                       mcc::impl::mccGenerateBsplineKnots(0.0, 360.0_degs, 8),
-                       {" PCM B-spline knots along X-axis (HA-angle or azimuth). By default from 0 to 2*PI radians",
-                        " NOTE: The first and last values are interpretated as border knots!!!",
-                        "       Thus the array length must be equal to or greater than 2!"}),
+    make_config_record(
+        "pcmBsplineXknots",
+        mcc::impl::mccGenerateBsplineKnots(0.0, 360.0_degs, 8),
+        {" PCM B-spline knots along X-axis (HA-angle or azimuth).", " By default from 0 to 2*PI radians.",
+         " NOTE: The first and last values are interpretated as border knots!!!",
+         "       Thus the array length must be equal to or greater than 2!"}),
 
     // PCM B-spline knots along Y-axis (declination or zenithal distance).
     // By default from -SAORAS-latitude to PI/2 radians
     // NOTE: The first and last values are interpretated as border knots!!!
     //       Thus the array length must be equal to or greater than 2!
-    make_config_record(
-        "pcmBsplineYknots",
-        mcc::impl::mccGenerateBsplineKnots(-SAORAS_LATITUDE, 90.0_degs, 8),
-        {" PCM B-spline knots along Y-axis (declination or zenithal distance). By default from -PI/6 to PI/2 radians",
-         " NOTE: The first and last values are interpretated as border knots!!!",
-         "       Thus the array length must be equal to or greater than 2!"}),
+    make_config_record("pcmBsplineYknots",
+                       mcc::impl::mccGenerateBsplineKnots(-SAORAS_LATITUDE, 90.0_degs, 8),
+                       {" PCM B-spline knots along Y-axis (declination or zenithal distance).",
+                        " By default from -SAORAS-latitude to PI/2 radians.",
+                        " NOTE: The first and last values are interpretated as border knots!!!",
+                        "       Thus the array length must be equal to or greater than 2!"}),
 
     // PCM B-spline coeffs for along X-axis (HA-angle or azimuth)
     make_config_record("pcmBsplineXcoeffs",
diff --git a/asibfm700_pcm_fit.cpp b/asibfm700_pcm_fit.cpp
index 4d5f910..dc8e5e7 100644
--- a/asibfm700_pcm_fit.cpp
+++ b/asibfm700_pcm_fit.cpp
@@ -42,6 +42,9 @@ int main(int argc, char* argv[])
 
     cfg.dumpDefaultsToFile("eecc.cfg");
 
+    cfg.load("eecc.cfg");
+    cfg.save("eecc.cfg1");
+
     try {
         auto opt_result = options.parse(argc, argv);