longarekel—
1 ????? ???? ????? ?? ???? ????? ???? ???? ?? ?????
2- It is shayich to be yotzei both by tying all three shitas in the same beged and make a tnai the real one is tzitzis and the other is a kishut balma. see bais yosef end of siman 12.
3-see radzhiner sefer that in a case wear there is a machlokes with a kula and chumra on each side we say ????? ????? ????? ??? ???? ???? ????? ??? ??? ???? see the ramban and rashba in chulin 43b
4- I think there is a clear hachraah from the gra like shitas haraavad. I can’t be maarich now so see Kuntress Chosem shel zahav on page 49 http://www.tchelet-net.022.co.il/BRPortalStorage/a/31/86/54-EnqP9QK36s.pdf
I will not be able to reply from now on as I am going back to yeshiva tonight. I should be back purim time. I will look back here and answer any taanos that come up.