strap_hoop_strlen = 10;
strap_hoop_elevation = 45;
-sm_inner_circum = 239;
+sm_inner_circum = 218;
sm_main_thick = 2.0;
sm_main_width = 20;
sm_bolt_nut_thick = 3.68;
sm_bolt_tighten_allow = 2.0;
-sm_bolt_y_clear = 0.5;
+sm_bolt_y_clear = 0.75;
sm_bolt_y_over = 0.5;
sm_closure_cnr = 3.0;