I think I'm heading in the right direction and what I now understand or at least think I understand is that there is a conversion problem.
It is between the 'serial buffer' and the 'readString' variable which is then indexed to 'n' in 'servo.write()'.
I'm still looking for applicable information on this subject.
the code I've been working on is on post #27 are you saying you aren't going to post yours?
the subject is apparently in the form of a question as the title of the thread (see title) any more explanation of my problem would be ad nauseam
If you have any info that could possibly help me solve it, I'd love to know about it.