Lattice: bmad_dhrmove_v27. Wiggler beta_x (m) pretzel (mm) nearest quad 1 15.5 7.5 Q13 2 18.3 13.4 Q13-Q14 3 24.8 15.6 Q14 4 6.4 5.9 Q15 5 26.4 -16.7 Q18 6 23.5 -14.5 Q18-Q19 7 16. -12.4 Q19 In this lattice the pretzel maximum is at the north end of Q18 which is also the south end of wiggler #5. The next largest amplitude is at the north end of Q14 which is about a meter from the north end of wiggler #3. Without a redesign of the optics, the proposed 4mm mask would limit pretzel amplitude.---------------------------------------------------