Shot split for years, years ago.  

When I returned to recurves in 2010 I went 3U and will stay right there. Much easier on my digits.

Of course as said well above, however you bring the string and anchor together best, go for it.

I ordered about 50 back issues of Traditional Bowhunter magazine. (What a deal!)

Yesterday I read an article by Fred Asbell about tweaking set-ups. I'm definitely one that experiments and shoots a lot of different bows. He made good points about settling into equipment and processes to become masterful. I'm going to take heed.

I went to 3under a year or so ago it works well for me,But my heart is still with split so I don't know what the future holds .