I read:
so... how have you achieved tight timing sync? should i give up on network sync and just use a midi cable?
if the computers are close enough to use midi, you could try with a crossover tp ethernet cable, use udp netsend/receive and measure the latency and use the data to calibrate, this gave me fairly useable results. but
how about OSC?
osc is definitely the tool of choice here, since you can send timestamped messages it would f.i. be possible to send osc messages timestamped in the near future to keep two sequencers in sync.
regards,
x