You can use anywhere from three to five rows, though it should be noted that the fourth and fifth rows make your spins more expensive to perform.
https://talkingpoints.org/subx/showthread.php?tid=79762
http://forum.ruchkontroliwyborow.pl/index.php?topic=85280.new#new
http://forum.spolokmedikovke.sk/viewtopic.php?f=25&t=1226205&p=4116612#p4116612
http://horsecity.ru/phpBB3/viewtopic.php?f=33&t=397660
http://www.horsecity.ru/phpBB3/viewtopic.php?f=22&t=481908
https://www.ww2.site/forum/viewtopic.php?t=172461
https://www.rcfl.com.hk/forum.php?mod=viewthread&tid=43865&extra=
http://023002.com/forum.php?mod=viewthread&tid=1772329&extra=
http://www.lada-xray.net/showthread.php?p=151065#post151065
https://debate.socialism.nl/forum/showthread.php?tid=159913
http://qrfonline.qrfmag.com/qrfswap/viewtopic.php?t=165778
http://forum.spolokmedikovke.sk/viewtopic.php?f=26&t=1082854