Aint got much time so ill reply in detail later on inshallah But do not use islamicfinder, it uses different methods for higher latitude countries, i have also got a email from them confirming this. For fajr they use the nearest country time and use that for many months where the fajr time is early (even though fajr time happens), which according to most ulama (wifaqululama and others) is not allowed. I will reply in detail later