Don't know if anyone still cares about this thread, but i fixed a few issues with the servo controller and re-uploaded it

Notes:
Changed from 4.3us/increment to 8.6us/increment (one of my servos runs from 0.7ms..2.7ms, maybe others
do as well?)
timing is now:
0: 0.7ms
37: 1.0ms
100: 1.5ms
163: 2.0ms
250: 2.7ms

optimized timer reload table generation

fixed a bug where i was checking the update flag using jbc rather than jnb
(causing timer reload table to be regenerated during every 20ms gap)

Fixed a bug where low-order three bits were uninitialized (introduced about 3us randomization
each time an update occurred)

The primary symptom of the above bugs was rough operation when a servo's position was rapidly updated. The new code is considerably smoother.

Note: code is dependent on an 11.0592mhz crystal, and an 8051 with xtl/12 timer increment.