adepalo:
So, since my specific application needs to move from 80° to 100°, with a 0 point to 90° (I'll never ever reach 0° or 180°), Can I continue to use my sketch and the motor will operate correctly or do I have to ridefine the microseconds?
You will need to experiment to find the command values that make the new servo go to 80 and to 100 deg and then interpolate between those values.
Using writeMicroseconds() will give you finer control.
I have no knowledge of expensive or powerful servos. The cheap HobbyKing £3 servos meet my needs.
...R