Larry,
You can contact Lind Waldock, who is part of the Man Financial Group. They offer an eSignal rebate based on your trading volumes during the month.
Regards
The current eSignal deal for IB is the prepay offering of $85 month. This price is going to increase to $95, effective June 1.
The IB plug in does offer you the time savings convenience and should work.
Please contact the eSignal trade support group at trading@mail.esignal.com.