Regarding Fajar and Isha times, Maulana Shoyaib Nurgat (whom i think is part of Wifaq) has written an article outlining the 3 time tables (15 degrees, 18 degrees and Hizb Ulama) Analysis of Salah Times '...The senior Ulama in this country like Mufti Ismail Kacholvi Saheb, Mufti Yusuf Sacha Saheb are all of this opinion of 18 Degrees. Recently apart from one Masjid ( Falah) all the Masajid in Leicester have adopted this 18 Degrees timetable. The Masajid of Dewsbury, Batley, Regents Park and South London, and many others throughout the country have been following this timetable for quite a few years.'