For a start you could try studying the Vayoel Moshe, 'Maamar Yishuv EY'<br>where it is thoroughly discussed and explained (in just under 200 pages)<br>quoting 100s of sources from Chazal, Rishonim and Achronim.>>
<br><br>In spite of SBA Satmar is not mainstream psak. Try R. Tzvi Yehuda Kook for<br>a different perspective.<br><br>On a different topic a son of my friend learns in Yeshivat Har Hamor which is<br>considered a very right wing DL yeshiva. He said that though very strict in halacha
<br>that were insistent on using heter mechira because that was the psak of R. Kook.<br>Of course Vayoel Moshe would not agree -)<br clear="all"><br>-- <br>Eli Turkel