Critical and Anaretic Degrees

29 degrees of any sign is considered anaretic and indicates problems with making decisions and vacillation.

However, classic critical degrees give added strength.
As follows:
0, 13, 26 degrees Aries, Cancer, Libra, Capricorn
8-9 and 21-22 degrees Taurus, Leo, Scorpio, Aquarius
4 and 17 degrees Gemini, Virgo, Sagittarius, Pisces

Http://www.cafeastrology.com/criticaldegrees.html