ORIGINAL: Flaviusx
Are you grouping them together? Use them in packs of 3 for best results. Don't split them up. This is the secret sauce.
I was not grouping them together. My understanding from the Manual was that 10 convoy escorts provide maximum protection no matter how many resources/merchant ships are using a particular convoy route. In other words using more than 10 for any route is pointless. Is that not true?
If so, one would think that if you grouped all of your subs to attack just one convoy route the Allied Player could put 10 of his escorts onto that single route giving it maximum protection and limiting sub damage. But since the Allied player doesn't have enough convoy escorts to cover all of his routes, logic would dictate that the Axis player would sink more merchants by splitting up his u-boats between 2 or 3 convoy routes; thus forcing the Allied Player to use less than the maximum escorts for each route (or perhaps maximizing one route at the expense of the others).
So either I don't understand the Rules or logic doesn't apply here. Either way I thank you for your advice.