Forgot to comment on the EC2 problem.
Since the B problem was intermittent, there is a 99.99% probability that
the flaw is in the relay that switches the injectors between A & B
controller injector driver transistors. This is one of those
cases where the complexity of redundancy causes rather than cures a
problem. (See current stories about the space shuttle now on the launch
pad.) This is the reason why I decided not to add the complexity of
auto-switching of controllers in the event of a failure. I get asked about
that a lot.
Tracy (Wondering how many times I have cited the
example of shuttle launch scrubs due to faulty sensors in the backup
systems)
Tomorrow I plan to send off my EC2 and this sun gear, but not the rest of
the redrive as all seems in order there.