[Schöneboom]

Guten Abend, DirtyACE,

The Western Approaches are reliable fishing areas because of the bottlenecks; if I had to choose between north & south of Ireland, I'd pick the north passage because of the narrower search area. Also, there is a channel between the Outer Hebrides & the Scottish mainland, known as The Minch. There is always single-ship British traffic through there (sometimes convoys), and you don't have to get close to Loch Ewe to find those ships. You could just lurk at, for ex., the south end and catch them going in or out. In GWX I'd stay away from Britain's east coast because of the mines.

Re how to intercept, I don't pursue every contact that appears on the map; that way lies madness. The ones worth pursuing are generally heading towards my position and within 1 day's travel (2 days, for convoys, maybe). Farther than that, esp. without map updates, it's not worth it -- odds are, the ships will change course.

After calculating the ETA for the intercept, it's a very good idea to submerge for sound checks periodically once you're in hydrophone range, esp. in bad weather &/or at night. A vital point: do not rely entirely on the sonar man -- slow down the boat ("Kleinefahrt") and listen yourself -- you'll often hear the ships long before he does.

Once you can hear the ship, the rest is history!

Gute Jagd!