I have no normal support to Garmin in my country. so if it will be stacked and hard-reset will not help, I will have a huge long resolving problem. So I am sure disappointed from garmin custom map limitations on kmz format, but prefer to reduce the risk to stay without gps long time. So Let us wait for the developer word.
Just to remind - needed firmware putcher support to new 3.40 Garmin firmware for garmin 62s.
Thanks