Honestly, transfer to a XXI and stock up on homing torps. Either that or get use to making long, 2-3km shots from outside of the convoy with looping torpedoes. Those are the only two 43-on techniques for dealing with convoys that I know of (unless you're an expert against destroyers with regular torps- but hedgehogs make that very tough).
The one positive is that there still are lone merchants to be had during this time. I'm having reasonable luck going after them around the UK in my XXI. My plan is to alternate between lone merchants/small convoys one patrol, and then next patrol stocking up on homing torps and attacking a single medium convoy, destroying everything in it before returning home.
|