Action-kick sensitivity to HGQ field errors at injection (R0 = 10 mm):

Multipole 	|\Delta J/J\right| (10^{-3}) 
b_3/a_3		0.27
b_4/a_4		0.41
b_5/a_5		0.63
b_6/a_6		0.98
b_7/a_7		1.5
b_8/a_8		2.3
b_9/a_9		3.7
b_10/a_10	5.7

Note:

1. 1 unit (@1.0 cm) multipole error on one (Q2A$+$Q2B) quad set

2. nominal injection; 11 sigma amplitude with zero crossing angle