The ultrathin polyacrylamide gels give single base resolution beyond 600 nts. 800 bases is routine. However, you should not rely on the automated base calls. This avoids two very time consuming and error prone steps. The result is more time to analyze and use your sequence data.
Commercial software is also available.
We have not tried it ourselves. We could run 10 samples per gel. Our goal is a 2 day turnaround time. Please submit a web DSEQ WorkRequest form, then bring your samples to the lab for scheduling. The samples are cycled in the afternoon and loaded on the sequencer the following day.