Hey Rob im sorry to hear that you have not had a great first experiance with the GW.
When waiting for these convoys and Task forces were you using you Hyderphone? Or just the lookout crew up on the bridge?
The harbour traffic might not be everyones cup of tea but it does bring a sence of realism to the ports
If you are stuggleing to find tagets in the convoy lanes why not try raiding a port? With GW you can be sure the are going to be some targets in them unlike stock SH3.
Im sure the is a way of getting your map to update the contacts with GW i know my map updates the contacts, when you are heading into indercept them.
Keep at it Rob the big sinkings will come.
Good hunting mate