Strange way to avoid subnets

[Cezbor]

I'd posted that somewhere else on the forum (Dilema at Curacao), than I thought it may be interesting to ivestigate further. Has anyone else discovered that?
Once I've discovered a way to avoid subnets, but..... frankly you need to use long range torpedoes like T I type or T VII. Why ... simple. I think game engine or sth has a certain limitation. In my opinion game generates subnets when you're about 4-5 km from your targets or the place the subnet is. It happened to me near Halifax, where are about 15 juicy targets. I'd fired two torpedos from 7,5 km and sent two targets to the sea bottom. When I was about 3 km I fired another two torpedos and all of them hit subnet. Well, due to the fact that those two torps fired earlier were not "flying wunderwaffe", I assume that game generates subnets the way I mentioned above. Of course it has to be confirm by studies.