Multiple Spindle Orients

I would like to try to do some engraving and I want to orient the spindle to different angles so that the "face" of the tool is always perpendicular to the line of cut. I can get the first orientation, but can't get additional changes. For example, I issue the following to my 1996 Cincinnati Sabre 750 with A2100 control. I do have spindle probe and tool probe options enabled.
: T1 MO6
G00 X.0000 Y.0000
G00 Z.1000
M19 S12.0000
G01 Z-.0200 F5.0
G01 X.0033 Y.0007 Z-.0200
M19 S35.4898
G01 X.0061 Y.0027 Z-.0200
M19 S57.6947
G01 X.0081 Y.0059 Z-.0200
M19 S78.2963
G01 X.0089 Y.0099 Z-.0200
M19 S97.3452
G01 X.0083 Y.0145 Z-.0200
M19 S115.0649
G01 X.0062 Y.0191 Z-.0200
M19 S131.7125
G01 X.0024 Y.0233 Z-.0200
M19 S147.5168
G01 X-.0028 Y.0266 Z-.0200
M19 S162.6624
G01 X-.0093 Y.0286 Z-.0200
M19 S177.2918
G01 X-.0167 Y.0290 Z-.0200
M19 S191.5137
G01 X-.0247 Y.0274 Z-.0200
M19 S205.4107
G01 X-.0325 Y.0236 Z-.0200
M19 S219.0457
G01 X-.0398 Y.0177 Z-.0200
M19 S232.4674
G01 X-.0459 Y.0098 Z-.0200
M19 S245.7135
G01 X-.0504 Y.0000 Z-.0200
M19 S258.8136
G01 X-.0526 Y-.0112 Z-.0200
M19 S271.7913
G01 X-.0522 Y-.0232 Z-.0200
M19 S284.6655
G01 X-.0490 Y-.0356 Z-.0200
M19 S297.4514
G01 X-.0428 Y-.0475 Z-.0200
M19 S310.1615
G01 X-.0337 Y-.0583 Z-.0200
M19 S322.8061
G01 X-.0218 Y-.0672 Z-.0200
M19 S335.3936
G01 X-.0077 Y-.0737 Z-.0200
M19 S347.9313
G01 X.0081 Y-.0771 Z-.0200

(additional lines omitted)

G92 A0.000
G00 Z0.200
G00 X0.0000 Y0.0000


The spindle will do the first orient, but does not pick up any other orient changes. This is just a simple scroll with about 4 rotations to test the process. Maybe I need to add an additional "unlock" code prior to issuing the next orient change, but I don't know what that is. Any help is much appreciated.
Thanks,
Mike