I just wanted to give Kudos to the GWX team for really tweaking the AI. Last night I attempted to intercept my first convoy. I figured I would try some of my old techniques. I was able to get myself into a good position with a calm sea, at about high noon. I couldn't keep my scope up for more than a few seconds without it attracting gun fire, also the buoyancy made me keep things moving.
Aside from my attempt being a complete failure I loved the fact that this mod forces me to use real world tactics (i.e. attacking during the day time with calm seas is considered a bad approach). It is much better to shadow until night fall and then execute the attack.
Good Job GWX team!